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Parasites: Classification and Transmission
Ever wondered what's living on or inside other organisms? That's the fascinating world of parasitology - the study of relationships between parasites and their hosts. Parasites come in three main types based on location: ectoparasites that live on the host's surface (causing infestations), endoparasites that live inside the host (causing infections), and hyperparasites that are parasites living within other parasites.
Parasites spread from host to host through the fecal-oral route or via vectors. Vector transmission happens in two ways: through biological vectors (essential to the parasite's life cycle) or mechanical vectors (which simply carry the parasite).
When scientists classify parasites, they focus on two main groups: helminths (multicellular worms visible to the naked eye) from Kingdom Animalia, and protozoa from Kingdom Protista. Most protozoa are small, heterotrophic organisms that consume food, lack cell walls, and can move around. They're found in water, soil, or inside other organisms.
Did You Know? Protista also includes algae (mostly photosynthetic organisms in aquatic environments) and water/slime molds (which are saprotrophic like fungi but can move around).
Protozoa: Life Cycle and Reproduction
Protozoa are fascinating microorganisms that adapt to survive in various environments. Most exist as trophozoites - active, feeding forms that reproduce and move around. When conditions get tough, some protozoa can form cysts - protective dormant structures that help them survive harsh environments until conditions improve.
These single-celled organisms reproduce in several ways. Asexual reproduction happens through binary fission (splitting in two), schizogony (multiple fission where the nucleus divides many times before cell separation), or budding. Some protozoa can also reproduce sexually through the fusion of haploid sex cells.
Medically important protozoa are classified into four groups based on how they move: amoeboids use pseudopods (temporary extensions of cytoplasm), ciliates use hair-like cilia, flagellates move with whip-like structures called flagella, and some don't move at all (intracellular parasites like Plasmodium). This movement classification helps scientists identify and study disease-causing protozoa.
Important! Understanding how protozoa move is key to identifying them under a microscope - this is often the first step in diagnosing a parasitic infection.
Amoeboids and Ciliates
Amoeboids are fascinating protozoa that move by extending pseudopods - temporary "false feet" formed when their cytoplasm flows in a particular direction. They use these pseudopods not just for movement but also to capture food through phagocytosis (cell eating). While many amoeboids are harmless, some cause serious diseases.
The most notorious pathogenic amoeba is Entamoeba histolytica, which causes amoebic dysentery. It exists primarily as a cyst in nature, and when humans consume contaminated food or water, these cysts "hatch" in the intestines to release trophozoites. These active forms multiply and eventually form new cysts that pass in feces, continuing the infection cycle.
Ciliates represent some of the most complex protists, with tiny hair-like projections (cilia) that beat in coordinated patterns for movement. Most ciliates aren't harmful, but Balantidium coli is a notable exception - it causes diarrhea and has a distinctive large nucleus. Like many parasites, infection occurs through ingestion of cysts from contaminated sources.
Remember This: Not all similar-looking parasites are equally dangerous! Entamoeba coli is a harmless intestinal commensal (lives without causing harm), while Entamoeba histolytica causes serious disease - but they look very similar under a microscope.
Flagellates
Flagellates are protozoan parasites that move using flagella - long whip-like structures that propel them through their environment. Many also have an undulating membrane (UM), which is a fin-like extension that helps with movement. The speed and effectiveness of movement depends on these structures.
Some flagellates contain a unique structure called a kinetoplast . Based on the position of this structure and their flagella, these parasites take four distinct forms: trypomastigotes (fastest form with posterior kinetoplast and anterior flagellum), epimastigotes (medium speed with middle kinetoplast), promastigotes (slowest with anterior kinetoplast and no UM), and amastigotes .
Several flagellates cause important human diseases. Giardia lamblia causes severe diarrhea and has two distinctive nuclei at its anterior end. Trichomonas vaginalis infects the genitalia as a sexually transmitted disease, though many infected people show no symptoms. Unlike many parasites, it doesn't form protective cysts.
Real-World Application: When doctors diagnose parasitic infections, identifying the movement pattern and cellular structures of these organisms helps determine the correct treatment approach. Different flagellates require different medications!
Disease-Causing Flagellates and Intracellular Parasites
Certain flagellates cause serious diseases that affect millions worldwide. Trypanosoma brucei causes African sleeping sickness and switches between different forms during its life cycle - appearing as a trypomastigote in human blood but as an epimastigote in the tsetse fly's intestine. This shapeshifting ability makes it challenging to treat.
Leishmania species cause various forms of leishmaniasis, typically appearing as amastigotes inside host cells and as promastigotes in sand flies. The disease primarily affects the skin but can spread to other organs in severe cases.
Intracellular parasites like Plasmodium represent another category of dangerous protozoa. Unlike the previous groups, these parasites lack movement structures and live inside host cells. They have complex life cycles involving both sexual and asexual reproduction. Important examples include Plasmodium species (causing malaria), Toxoplasma gondii (causing toxoplasmosis), and Cryptosporidium parvum (causing diarrhea).
Health Alert: Intracellular parasites are especially difficult to treat because medications must penetrate host cells to reach them. This is why some parasitic diseases like malaria require complex treatment protocols.
Malaria Life Cycle
Malaria, caused by Plasmodium parasites, affects millions globally with P. falciparum and P. vivax being the most common species. The disease involves a complex life cycle spanning two hosts: humans and female Anopheles mosquitoes.
When an infected mosquito bites a human, it injects sporozoites into the bloodstream. These travel to the liver, invade cells, and multiply to produce merozoites. The merozoites then enter the bloodstream, invade red blood cells, and reproduce through schizogony. When these infected cells rupture, they release more merozoites along with cellular debris that triggers the characteristic fever and chills of malaria.
Some merozoites develop into gametocytes (sexual forms) that circulate in the bloodstream. When another mosquito bites the infected person, it ingests these gametocytes, which develop into gametes that fuse to form a zygote. This develops into an oocyst that eventually ruptures to release sporozoites that migrate to the mosquito's salivary glands, ready to infect another human.
Critical Concept: The malaria parasite's life cycle demonstrates a key pattern in many parasitic infections - asexual reproduction occurs in humans (allowing rapid infection spread), while sexual reproduction happens in the mosquito (creating genetic diversity that helps the parasite evade immune responses).
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Our AI companion is specifically built for the needs of students. Based on the millions of content pieces we have on the platform we can provide truly meaningful and relevant answers to students. But its not only about answers, the companion is even more about guiding students through their daily learning challenges, with personalised study plans, quizzes or content pieces in the chat and 100% personalisation based on the students skills and developments.
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Is Knowunity really free of charge?
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4.8/5
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The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️
Thomas R
iOS user
Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades
Brad T
Android user
Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend
Aubrey
iOS user
Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀
Marco B
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!
Paul T
iOS user
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️
Thomas R
iOS user
Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades
Brad T
Android user
Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend
Aubrey
iOS user
Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀
Marco B
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!
Paul T
iOS user
Parasites: Exploring Their World
Parasites are organisms that live on or inside other living things (hosts), often causing harm. This topic explores different types of parasites, how they move, reproduce, and cause disease. Understanding parasites is crucial for recognizing and preventing infections that can... Show more
Parasites: Classification and Transmission
Ever wondered what's living on or inside other organisms? That's the fascinating world of parasitology - the study of relationships between parasites and their hosts. Parasites come in three main types based on location: ectoparasites that live on the host's surface (causing infestations), endoparasites that live inside the host (causing infections), and hyperparasites that are parasites living within other parasites.
Parasites spread from host to host through the fecal-oral route or via vectors. Vector transmission happens in two ways: through biological vectors (essential to the parasite's life cycle) or mechanical vectors (which simply carry the parasite).
When scientists classify parasites, they focus on two main groups: helminths (multicellular worms visible to the naked eye) from Kingdom Animalia, and protozoa from Kingdom Protista. Most protozoa are small, heterotrophic organisms that consume food, lack cell walls, and can move around. They're found in water, soil, or inside other organisms.
Did You Know? Protista also includes algae (mostly photosynthetic organisms in aquatic environments) and water/slime molds (which are saprotrophic like fungi but can move around).
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Protozoa: Life Cycle and Reproduction
Protozoa are fascinating microorganisms that adapt to survive in various environments. Most exist as trophozoites - active, feeding forms that reproduce and move around. When conditions get tough, some protozoa can form cysts - protective dormant structures that help them survive harsh environments until conditions improve.
These single-celled organisms reproduce in several ways. Asexual reproduction happens through binary fission (splitting in two), schizogony (multiple fission where the nucleus divides many times before cell separation), or budding. Some protozoa can also reproduce sexually through the fusion of haploid sex cells.
Medically important protozoa are classified into four groups based on how they move: amoeboids use pseudopods (temporary extensions of cytoplasm), ciliates use hair-like cilia, flagellates move with whip-like structures called flagella, and some don't move at all (intracellular parasites like Plasmodium). This movement classification helps scientists identify and study disease-causing protozoa.
Important! Understanding how protozoa move is key to identifying them under a microscope - this is often the first step in diagnosing a parasitic infection.
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Amoeboids and Ciliates
Amoeboids are fascinating protozoa that move by extending pseudopods - temporary "false feet" formed when their cytoplasm flows in a particular direction. They use these pseudopods not just for movement but also to capture food through phagocytosis (cell eating). While many amoeboids are harmless, some cause serious diseases.
The most notorious pathogenic amoeba is Entamoeba histolytica, which causes amoebic dysentery. It exists primarily as a cyst in nature, and when humans consume contaminated food or water, these cysts "hatch" in the intestines to release trophozoites. These active forms multiply and eventually form new cysts that pass in feces, continuing the infection cycle.
Ciliates represent some of the most complex protists, with tiny hair-like projections (cilia) that beat in coordinated patterns for movement. Most ciliates aren't harmful, but Balantidium coli is a notable exception - it causes diarrhea and has a distinctive large nucleus. Like many parasites, infection occurs through ingestion of cysts from contaminated sources.
Remember This: Not all similar-looking parasites are equally dangerous! Entamoeba coli is a harmless intestinal commensal (lives without causing harm), while Entamoeba histolytica causes serious disease - but they look very similar under a microscope.
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Flagellates
Flagellates are protozoan parasites that move using flagella - long whip-like structures that propel them through their environment. Many also have an undulating membrane (UM), which is a fin-like extension that helps with movement. The speed and effectiveness of movement depends on these structures.
Some flagellates contain a unique structure called a kinetoplast . Based on the position of this structure and their flagella, these parasites take four distinct forms: trypomastigotes (fastest form with posterior kinetoplast and anterior flagellum), epimastigotes (medium speed with middle kinetoplast), promastigotes (slowest with anterior kinetoplast and no UM), and amastigotes .
Several flagellates cause important human diseases. Giardia lamblia causes severe diarrhea and has two distinctive nuclei at its anterior end. Trichomonas vaginalis infects the genitalia as a sexually transmitted disease, though many infected people show no symptoms. Unlike many parasites, it doesn't form protective cysts.
Real-World Application: When doctors diagnose parasitic infections, identifying the movement pattern and cellular structures of these organisms helps determine the correct treatment approach. Different flagellates require different medications!
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Disease-Causing Flagellates and Intracellular Parasites
Certain flagellates cause serious diseases that affect millions worldwide. Trypanosoma brucei causes African sleeping sickness and switches between different forms during its life cycle - appearing as a trypomastigote in human blood but as an epimastigote in the tsetse fly's intestine. This shapeshifting ability makes it challenging to treat.
Leishmania species cause various forms of leishmaniasis, typically appearing as amastigotes inside host cells and as promastigotes in sand flies. The disease primarily affects the skin but can spread to other organs in severe cases.
Intracellular parasites like Plasmodium represent another category of dangerous protozoa. Unlike the previous groups, these parasites lack movement structures and live inside host cells. They have complex life cycles involving both sexual and asexual reproduction. Important examples include Plasmodium species (causing malaria), Toxoplasma gondii (causing toxoplasmosis), and Cryptosporidium parvum (causing diarrhea).
Health Alert: Intracellular parasites are especially difficult to treat because medications must penetrate host cells to reach them. This is why some parasitic diseases like malaria require complex treatment protocols.
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Malaria Life Cycle
Malaria, caused by Plasmodium parasites, affects millions globally with P. falciparum and P. vivax being the most common species. The disease involves a complex life cycle spanning two hosts: humans and female Anopheles mosquitoes.
When an infected mosquito bites a human, it injects sporozoites into the bloodstream. These travel to the liver, invade cells, and multiply to produce merozoites. The merozoites then enter the bloodstream, invade red blood cells, and reproduce through schizogony. When these infected cells rupture, they release more merozoites along with cellular debris that triggers the characteristic fever and chills of malaria.
Some merozoites develop into gametocytes (sexual forms) that circulate in the bloodstream. When another mosquito bites the infected person, it ingests these gametocytes, which develop into gametes that fuse to form a zygote. This develops into an oocyst that eventually ruptures to release sporozoites that migrate to the mosquito's salivary glands, ready to infect another human.
Critical Concept: The malaria parasite's life cycle demonstrates a key pattern in many parasitic infections - asexual reproduction occurs in humans (allowing rapid infection spread), while sexual reproduction happens in the mosquito (creating genetic diversity that helps the parasite evade immune responses).
We thought you’d never ask...
What is the Knowunity AI companion?
Our AI companion is specifically built for the needs of students. Based on the millions of content pieces we have on the platform we can provide truly meaningful and relevant answers to students. But its not only about answers, the companion is even more about guiding students through their daily learning challenges, with personalised study plans, quizzes or content pieces in the chat and 100% personalisation based on the students skills and developments.
Where can I download the Knowunity app?
You can download the app in the Google Play Store and in the Apple App Store.
Is Knowunity really free of charge?
That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.
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The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️
Thomas R
iOS user
Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades
Brad T
Android user
Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend
Aubrey
iOS user
Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀
Marco B
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!
Paul T
iOS user
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️
Thomas R
iOS user
Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades
Brad T
Android user
Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend
Aubrey
iOS user
Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀
Marco B
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!
Paul T
iOS user