Today, at a glance
Today shows the cards that are due, a few new ones, your streak and your daily goal. Flip a card, rate it, move on. Switch to quiz mode when you want to.
BioRecall
Remember the biology you study.
1,220 carefully written biology cards in 24 decks, with spaced repetition that schedules every review for you.
iPhone · iPad · Mac · Apple Watch
Cell Biology
Try a real BioRecall card: tap it, then rate it.
The film
BioRecall, in motion.
A short narrated tour of the app.
Spaced repetition
Cards you miss come back sooner. Cards you know wait longer.
Flip a card, rate it Again, Hard, Good or Easy, and BioRecall keeps the schedule for you.
Recall
Read the question and answer it in your head before you flip the card.
Rate
Tell the app how it went. Honest ratings make a better schedule.
Return
Open Today and the cards that are due are waiting, with a few new ones and your daily goal.
A closer look
Biology, screen by screen.
From the plan for today to the progress you have made. Every screen here is the real app.
Your biology plan for todayDue reviews, new cards, daily goal and streak at a glance 
Recall it, then rate itCards you miss come back sooner; cards you know wait longer 
Every session countsAccuracy, time, new cards learned and your streak 
Watch your mastery growMastery across all 24 decks, from cells to ecosystems
The library
24 decks. 1,220 cards. All included.
Carefully written for AP Biology, introductory college biology, MCAT biology review and pre-med students. Every deck is on your device from the first launch, and you can add your own.
Cell Biology
59 cards
Cell structure, organelles, membrane transport, and the cell cycle
Genetics
58 cards
DNA, RNA, protein synthesis, inheritance patterns, and mutations
Evolution
55 cards
Natural selection, speciation, evidence for evolution, and macroevolution
Ecology
57 cards
Ecosystems, populations, communities, biomes, and conservation
Human Anatomy
56 cards
Body systems, organs, tissues, and physiology
Immunology
57 cards
Innate and adaptive immunity, antibodies, vaccines, and immune disorders
Molecular Biology
62 cards
DNA replication, transcription, translation, and gene regulation
Neurobiology
53 cards
Neurons, synapses, the brain, sensory systems, and neural signaling
Plant Biology
51 cards
Plant structure, photosynthesis, transport, and reproduction
Microbiology
50 cards
Bacteria, viruses, fungi, protists, and infectious disease
Biochemistry
58 cards
Metabolism, enzymes, proteins, lipids, carbohydrates, and energy
Virology
50 cards
Virus structure, replication, pathogenesis, and viral diseases
Show all 24 decksShow fewer decks
Endocrine System
48 cards
Hormones, glands, feedback loops, and endocrine regulation
Cardiovascular System
49 cards
Heart anatomy, blood vessels, circulation, and cardiac physiology
Respiratory System
40 cards
Lungs, gas exchange, breathing mechanics, and respiratory control
Digestive System
39 cards
Digestion, absorption, accessory organs, and nutrient processing
Reproduction
45 cards
Reproductive systems, gametogenesis, fertilization, and pregnancy
Developmental Biology
54 cards
Embryogenesis, cell differentiation, morphogenesis, and growth
Histology
50 cards
Tissue types, cellular organization, and microscopic anatomy
Zoology
54 cards
Animal classification, anatomy, behavior, and physiology
Marine Biology
42 cards
Ocean ecosystems, marine organisms, and aquatic adaptations
Parasitology
50 cards
Parasites, hosts, life cycles, and parasitic diseases
Biotechnology
44 cards
Genetic engineering, cloning, CRISPR, and applied biology
Bioinformatics
39 cards
Sequence analysis, genomics, databases, and computational biology
Features
Built for a few focused minutes a day.
See your progress
A summary after every session, mastery for each deck, streaks and a study heatmap in the Progress tab.
Add your own cards
Create and edit decks, or import cards from a CSV file and export them again. Optional AI card generation with your own OpenAI or Anthropic API key: you review every card before it is added.
front,back
"What does ATP stand for?","Adenosine triphosphate"A nudge, not a nag
One daily study reminder at a time you choose, and a System, Light or Dark appearance to match your device.
Study anywhere, even offline.
All 1,220 cards are stored on your device. You only need a connection to buy or restore a purchase and for optional AI card generation with your own API key.
Apple Watch
A few cards, right on your wrist.
Review due cards on Apple Watch; results sync back to your iPhone. Open BioRecall on your iPhone to send due cards to the watch, then flip and rate them anywhere. The watch works offline once it has synced.
iPad and Mac
Room to think on a bigger screen.
A sidebar layout on iPad and Mac. On Mac, press Space to flip a card and 1 to 4 to rate it. One subscription unlocks iPhone, iPad and Mac. Progress is stored on each device.
Your study data stays on your device.
- No account or sign-up
- No ads, analytics or tracking
- Purchases handled by Apple
- AI only with your own keyOptional AI card generation with your own OpenAI or Anthropic API key. Requests go straight from your device to the provider.
Pricing
Simple pricing.
One purchase unlocks iPhone, iPad and Mac.
Monthly
$9.99 / month
7 days free, then $9.99 every month until you cancel.
Best value: save 49%
Yearly
$59.99 / year
7 days free, then $59.99 every year. That is about $5.00 a month, 49% less than paying monthly.
Lifetime
$99.99 once
Pay once. No subscription and nothing to renew.
How the free trial works
Monthly and yearly plans start with 7 days free for new subscribers. Cancel at least 24 hours before the trial ends and you will not be charged. Otherwise the plan renews automatically at the price shown until you cancel.
Included in every plan
- All 24 decks and 1,220 cards
- iPhone, iPad and Mac with one purchase
- Apple Watch app for quick reviews
- Study sessions, quizzes and progress
- Your own decks, with CSV import and export
- Optional AI card generation with your own OpenAI or Anthropic API key
Prices are in US dollars; the App Store shows the price in your currency. Payment is charged to your Apple Account. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period, and you can manage or cancel them in your Apple Account settings. Restore Purchases is available in the app. One purchase unlocks the app on iPhone, iPad and Mac signed in with the same Apple Account; study progress is stored separately on each device.
Questions, answered.
Something else? Email shankarduttsgd@gmail.com.
Is there a free trial?
Yes. Monthly and yearly plans start with a 7-day free trial for new subscribers. Cancel at least 24 hours before it ends and you will not be charged. Lifetime is a one-time purchase without a trial.
Is there a free version?
No. BioRecall is a paid app, and you choose a plan when you first open it. The free trial on monthly and yearly lets you use everything before you pay.
Who is it for?
BioRecall is built for AP Biology, introductory college biology, MCAT biology review and pre-med students. It covers Cell Biology, Genetics, Evolution, Ecology, Human Anatomy, Immunology, Molecular Biology and Neurobiology, among 24 decks in total. AP® is a trademark registered by the College Board; MCAT® is a registered trademark of the Association of American Medical Colleges. These organizations are not affiliated with, and do not endorse, BioRecall.
Does my progress sync between iPhone, iPad and Mac?
No. One purchase unlocks BioRecall on iPhone, iPad and Mac with the same Apple Account, but study progress is stored separately on each device. The Apple Watch app is the exception: reviews you do on the watch are sent back to your iPhone.
What does the Apple Watch app do?
It lets you review the cards that are due on your iPhone. Open BioRecall on your iPhone to send due cards to the watch. You can then flip and rate them on your wrist, even offline, and your ratings sync back to your iPhone.
Can I add my own cards?
Yes. Create your own decks and cards, or import them from a CSV file with front and back columns. You can export decks as CSV as well.
Do I need an AI key?
No. AI card generation is optional. If you want it, add your own OpenAI or Anthropic API key in Settings. When you tap Generate, the app drafts cards for that deck and you review them before they are added. The provider bills any API usage to your own account.
Does it work offline?
Yes. All 1,220 cards are stored on your device. You only need a connection to buy or restore a purchase and to use optional AI card generation with your own OpenAI or Anthropic API key.
How do I cancel?
On iPhone or iPad, open Settings, tap your name, then Subscriptions, and choose BioRecall. On Mac, open the App Store, click your name, then Account Settings, and manage Subscriptions. Apple handles billing and cancellation.
Start with 1,220 biology cards.
BioRecall for iPhone, iPad and Mac, with an Apple Watch app for reviews on the go.
iPhone · iPad · Mac · Apple Watch