SnapBioOur app
Best for: Free help with homework questions
Three free biology solves every day, each with a step-by-step explanation, and no ads. Plenty for most homework nights.
Price: Free; Pro in-appPlatforms: iPhone
Best of 2026
The best free biology apps for students
You don't need to pay to get good biology help. These apps are free or have free tiers that are genuinely useful, not just a trial.
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.
How we chose
Useful for freeNot just a short trial
No surprise paywallClear about what costs money
Good for biologyHelps with real coursework
What matters to you?
Khan Academy
Best for: Free full courses
Everything core is free: videos, articles and practice for biology, high school biology and AP Biology.
Price: Core courses are free; Khanmigo is $4/month or $44/year, before sales taxPlatforms: Web, iOS, Android
Anki
Best for: Free spaced-repetition flashcards
Anki schedules flashcards so you review them just before you'd forget. Free everywhere except the official iPhone app.
Price: Free; iPhone app is $24.99 one-timePlatforms: Desktop, web, Android, iOS
Quizlet
Best for: Free flashcard sets
The free plan still lets you make and study flashcards, and there are biology sets for most courses.
Price: $9.99/month or $44.99/year for Quizlet Plus (App Store)Platforms: Web, iOS, Android
Google Lens
Best for: Free photo look-ups
Free, fast and already on most phones. Best for quick checks.
Price: FreePlatforms: Android, iOS (Google app), Chrome
BBC Bitesize
Best for: Free UK revision guides
Clear GCSE biology guides and quick tests, organised by exam board.
Price: FreePlatforms: Web, iOS, Android
FAQ
Is SnapBio free?
Yes. SnapBio is free to download and includes three biology solves a day. Pro adds unlimited solves, simpler explanations, quizzes and flashcards.
What is the best free app to learn biology?
Khan Academy is the best free app for learning biology topics from scratch. For help with specific homework questions, SnapBio's free tier is a good fit.
Make your next biology question click.
Snap a question and see the steps. Three free solves every day.