Codon One: Biology Study
DNA, Genetics, Evolution
Free · In‑App Purchases
Codon One helps you learn biology step by step, with short lessons, quick quizzes, flashcards, and a searchable glossary.
Build a solid foundation in molecular biology, genetics, evolution, cell biology, development, and the history of science. Each section breaks complex ideas into clear explanations, diagrams, and focused checks for understanding.
Core course (Modules)
Module 1: Chemistry of Life – atoms & elements, bonds, water, pH, biomolecules
Module 2: Genetics – chromosomes, replication, transcription, translation, regulation
Module 3: Evolution – history of life, phylogeny, selection, drift, speciation, molecular evolution
Module 4: History of Science – ideas, methods, and experiments that shaped modern biology
Module 5: Cell Biology – membranes & transport, organelles & energy, cytoskeleton, signaling, cell division
Module 6: Development – fertilization & body plans, differentiation, pattern formation & morphogenesis, growth & repair, evo-devo
Additional topics are planned for future updates, including Animal Physiology, Microbiology & Immunology, Plant Biology, and more.
Glossary & Flashcards
Look up the essentials in one place - key terms from every module, plus the 20 amino acids and the nucleobases.
Turn any topic into a flashcard deck and review with smart, spaced practice that focuses on the cards you find hardest.
Quiz & Progress
Practice across biochemistry, genetics, evolution, cell biology, development, and science history in a dedicated quiz area.
Track improvement with success rates and per-topic stats, and let the app resurface your weak questions for targeted review. Keep a daily streak going to build a steady habit.
Got a good question? Submit it directly from the app.
Built-in Tools
Sequence Operator: paste DNA, reverse or complement it, transcribe to RNA, translate in all six reading frames, and view length, GC content, and melting temperature.
Codon Picker: explore the genetic code, see which codons map to each amino acid or stop signal, and tweak bases to see the effect.
Triplet Encoder: write a message in amino-acid single-letter code and encode it as a DNA triplet sequence, then decode it by translation.
Found a bug or have suggestions? Email info@codon-one.com - we read every message.
This update makes learning with Codon One smoother and more reliable:
• Improved flashcard scheduling and clearer review intervals.
• Better separation of new, due, and mastered flashcards, plus streak progress from meaningful study sessions.
• A simpler free Module 1 unlock throughout the course and shop.
• More reliable purchases, restores, shop loading, and access synchronization.
• Improved onboarding, notifications, sharing, and translations.
Also includes crash fixes and interface polish throughout the app.
The developer, Daniel Gebert, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Daniel Gebert
- Size
- 319.2 MB
- Category
- Education
- Compatibility
Requires iOS 15.6 or later.
- iPhone
Requires iOS 15.6 or later. - iPad
Requires iPadOS 15.6 or later. - iPod touch
Requires iOS 15.6 or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 19 more
- English, Czech, Danish, Dutch, French, German, Indonesian, Italian, Japanese, Korean, Norwegian Bokmål, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Swedish, Traditional Chinese, Turkish, Ukrainian
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Module 1: Chemistry of Life $0.00
- Module 2: Genetics $2.99
- Unlock All $8.99
- Module 3: Evolution $2.99
- Module 4: Science History $2.99
- Module 6: Development $2.99
- Module 5: Cell Biology $2.99
- Copyright
- © 2026 Gebert Satrapa
