Alternatives
Chegg is a paid homework service covering most college subjects. It is known for its library of textbook solutions and expert-answered questions, and it now adds AI answers on top. If it isn't working for you, these are the best options for biology students in 2026.
We make SnapBio, so we're biased. We've tried to be fair: each entry says who it's best for, including when that isn't us. Facts about other apps come from their official websites and public listings and were checked October 2026.
What matters to you?
Step-by-step biology homework help
The closest thing to a biology tutor in your pocket. Snap the question, get the answer, then short numbered steps explaining it. Three free solves a day, no ads. Pro adds simpler explanations, quizzes and flashcards.
Free courses, videos and practice
Khan Academy offers free lessons, videos and practice in biology and other subjects. Its separate Khanmigo AI tutor offers guided help, including image uploads where available, with paid individual access.
Community Q&A with AI help
Brainly started as a community where students answer each other's questions, and has since added AI answers and paid tutoring. It covers every school subject.
Flashcards and study sets
Quizlet is a flashcard and study-set platform with millions of user-made sets, plus paid study modes, practice tests and textbook solutions.
General AI assistant
ChatGPT is a general AI assistant that can discuss biology, read uploaded question images and guide learning through study mode. It can also generate practice questions and flashcard-style review; upload and tool limits depend on the plan.
Visual search with homework help
Google Lens lets you point your camera at something and search for it. For homework, it shows web results and, for some questions, AI-generated explanations. It took over from Google's Socratic app.
| Feature | SnapBio | Chegg |
|---|---|---|
| Snap or upload a photo of a question | Yes | Yes |
| Step-by-step explanations | Yes | Yes |
| Built specifically for biology | Yes | NoAll subjects |
| Practice quizzes or flashcards | YesPro | PartlyHigher tiers |
| Human experts or community answers | No | YesSubject experts |
| Free option | Yes3 solves a day | NoPaid subscription |
| Paid options (US) | Shown in the app | $15.99/mo |
| Platforms | iPhone | Web, iOS, Android |
SnapBio has a free tier with three biology solves a day, so many students never need to pay. Chegg Study is a paid subscription ($15.99 a month on the US App Store when we checked). SnapBio Pro pricing for your region is shown in the app before you buy.
No. SnapBio uses AI to explain each question step by step. If you need a human expert to answer a question, Chegg offers that.
Yes. SnapBio handles questions from high school through introductory college biology, including cells, genetics, ecology, physiology and evolution. As with any AI tool, check the reasoning against your course notes.
Snap a question and see the steps. Three free solves every day.