Anatomix vs Codon One
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Anatomix
Explore and learn the human body's systems through interactive quizzes. Designed for children to learn anatomy playfully, it covers all major systems and offers voiceover support for non-readers. Unlock complete content with a one-time payment for lifetime access.
- Learn human body systems
- Interactive quizzes
- Identify bones and muscles
- Explore circulatory system
- Voiceover for non-readers
- Covers 11 body systems
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Learn and explore bones, muscles, organs and the systems of the human body with Anatomix. Designed for children and students, Anatomix turns anatomy into an interactive learning game. Explore each section at your own pace, identify body structures and work toward completing 100% of every topic. Anatomix includes: • Skeletal system • Muscular system • Circulatory system • Respiratory system • Digestive system • Urinary system • Nervous system • Endocrine system • Reproductive system • Lymphatic system • The five senses New learning content will continue to be added. If you would like to explore a particular system, contact us and let us know. Try Anatomix with the free trial and discover its full potential as a learning tool. A single in-app purchase unlocks all content for life, including new content added in the future. WHAT IS ANATOMIX? Anatomix is an anatomy learning game designed to help children and students understand the human body. Different difficulty levels adapt the experience to each learner, making it suitable for all ages. IS YOUR CHILD NOT READING YET? No problem. Turn on voice-over so they can learn without reading. HIGHLIGHTS • Identify bones, muscles, organs and other body structures. • Learn the different parts of the heart. • Read clear information about every system. • Study through play at different difficulty levels. • Fun for all ages. Learn the systems of the human body and master anatomy! Questions or suggestions? If something is not working correctly, contact us at hello@sierrachica.com. We will be happy to help.
Codon One
Master molecular biology, genetics, evolution, and life chemistry through interactive modules and quizzes. Explore essential concepts with clear diagrams and concise explanations. Includes helpful tools for sequence analysis and genetic code reference.
- Interactive learning modules
- Quick quizzes for comprehension
- Clear diagrams and plain language
- Molecule reference guide
- Sequence analysis tools
- Genetic code exploration
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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.
Screenshots
Verdict
Anatomix and Codon One both sit at 4.4 stars, but that hides the real split: 76% of Codon One's written reviews are positive against 50% of Anatomix's. Codon One also leads on update cadence (every 3 weeks vs every 2 months). On price, rating, ratings volume and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Anatomix sells 10 one-off in-app purchases and Codon One sells 7 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.4 for Anatomix against 4.5 for Codon One. Both are backed by a comparable volume of ratings — 30 and 25 respectively. Written reviews are what separate them: 50% of Anatomix's written reviews are positive against 76% of Codon One's.
Anatomix ships an update every 2 months, Codon One every 3 weeks. The most recent releases landed on October 21, 2026 and October 29, 2026 respectively.
| Parameter | Anatomix | Codon One |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (30 ratings) | 4.5 (25 ratings) — better |
| Positive reviews | 50.0% of reviews | 76.5% of reviews — better |
| Number of ratings | 30 — better | 25 |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 117 MB | 277 MB |
| Age rating | 4+ | 4+ |
| Developer | Sierra Chica Software SL | Daniel Gebert |
Customer experience
Anatomix
Codon One
In-app purchases
Anatomix
- Respiratory System$1.99
- Skeletal System$1.99
- Muscular System$1.99
Show 7 moreShow fewer
- Digestive System$1.99
- Urinary System$1.99
- Circulatory System$1.99
- Nervous System$1.99
- Endocrine System$1.99
- Reproductive System$1.99
- Complete Collection$12.99
Codon One
- Module 2: GeneticsFree
- Module 1: Chemistry of LifeFree
- Module 3: Evolution$2.99
Show 4 moreShow fewer
- Module 4: Science History$2.99
- Module 5: Cell Biology$2.99
- Module 6: Development$2.99
- Unlock All$8.99
Questions
Is Anatomix free?
Is Codon One free?
Which has better reviews, Anatomix or Codon One?
Do Anatomix or Codon One have ads?
Which is updated more often, Anatomix or Codon One?
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