Your flashcards now pick up exactly where you left off. • Flashcards: step away mid-session and come back with your progress intact, or start fresh. At the end of a round, keep practising or review how you did. • More dependable purchases: a clear status while one is awaiting approval, access the moment Apple confirms it, and restores that tell you what happened. • Something wrong on a page? Report it right there — and if the connection drops, your message is kept. Plus refreshed translations, crash fixes, and interface polish.

Now you can take notes as you learn. • Notes: jot down your own thoughts on any lesson page and find them together with your bookmarks to review anytime. • Sharper, better-fitting layouts on iPad, from lessons to the shop. • Clearer quiz flow, more rewarding streaks, and more reliable purchases. Plus refreshed translations, crash fixes, and interface polish.

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.

Module 6: Development is here. Follow life from a single fertilized cell to a fully formed body, with illustrated lessons on cleavage, gastrulation, cell differentiation, pattern formation, growth, repair, and evo-devo. Includes new quizzes and glossary terms. Study smarter: • Flashcards - turn any topic into a deck and review with spaced practice that focuses on the cards you find hardest. • Daily streaks - build a steady learning habit and keep your run going. • Sharper progress - track weak questions, review them again, and follow per-topic success stats. Glossary: search key terms from all modules in one place. Now available in more languages: Traditional Chinese, Indonesian, Japanese, Korean, Turkish, Swedish, and Norwegian. Existing translations have also been refined. Plus smoother first-time onboarding, stability improvements, and interface polish.

Enjoy a refreshed iOS experience and share your favourite lessons with elegant new cards. - Updated interface with the latest iOS design language for a smoother and more engaging learning experience. - New lesson-sharing feature: create and share beautifully designed cards with images and direct links. - General performance and visual improvements throughout the app.

- New Module: Cell Biology — membranes & transport, organelles & energy, cytoskeleton, signaling, microscopy. - Now you can preview locked modules before purchasing. - Quicker progression: a Start Quiz button now appears at the end of each section. - Practice smarter: redo a short quiz of only the questions you missed. - Delight on perfects: subtle confetti when you ace a quiz. - Better buttons: improved wrapping & padding for long titles. - Stability: lots of small fixes and crash reductions.

Fixes of bugs that newly occurred in iOS 17.

Preparations for upcoming modules.

Due to popular demand, we are introducing a dark mode for Codon One!

Many users requested the option to unlock all sections of a module without having to take the section quizzes. So here it is!

Minor error fixes

We are excited to introduce "Module 4: Science History"! Dive into the fascinating History of Science, from the ancient Greeks to the modern research of today.

Thanks to your excellent feedback, we made a few updates to the user interface and introduced a bookmarking system for you to store all your favorite lessons in one place.

Corrections and content improvements.

Text editing and minor improvements

We have polished the texts in all the languages we currently offer.

We've added more languages: Dutch, Danish, Czech and Portuguese! We've also improved existing localizations (Polish, Spanish, French, Italian and German).

Text editing and internal improvements.

Codon One is now available in additional languages: Polish, Russian, French, Spanish and Italian!

We are happy to release "Module 3: Evolution"! Gain a firm understanding of Evolution, Natural Selection and the immense Diversity of Life on this amazing planet of ours.

Text editing and final preparations for the release of Module 3: Evolution

Text editing, typography changes and preparations for upcoming module 3.

Update for iOS 15 and preparations for upcoming module 3.

Text corrections, bug fixes, and language support update.

Adjustments for upcoming modules, support option, and bug fix.