Comparison

Codon One vs Amino Acids Trainer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Interactive learning modules
  • Quick quizzes for comprehension
  • Clear diagrams and plain language
  • Molecule reference guide
  • Sequence analysis tools
  • Genetic code exploration
Features
Read full description

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.

About

Amino Acids Trainer

Master the 20 proteinogenic amino acids with interactive quizzes covering structures, codes, properties, and formulas. Practice with various modes, difficulty levels, and timed exams. Track your progress and review mistakes to build confidence.

Highlights
  • Interactive amino acid training
  • Structure, code, and property quizzes
  • Multiple quiz modes
  • Adjustable difficulty levels
  • Timed exam mode
  • Detailed statistics and progress tracking
  • Review and bookmarking features
Features
Read full description

Learn the 20 canonical proteinogenic amino acids through interactive and focused training. Study their structures, one-letter and three-letter codes, properties, side chains, molecular formulas and pKa values. Practice with multiple quiz modes: • Structure to name • Name to structure • One-letter code • Three-letter code • Properties and side chains • Molecular formulas and pKa values • Mixed training Choose between Easy, Medium and Hard difficulty. You can also control how carbon atoms are displayed in each chemical structure. Exam Mode gives you mixed questions within a 5, 10 or 15 minute time limit. Detailed statistics show your accuracy, progress, average response time, best streak and exam readiness. Incorrect answers are saved automatically. Review Mode lets you practice your mistakes again, while bookmarks help you save important amino acids for later. Ideal for school, university, biochemistry, medicine, pharmacy and anyone who wants to confidently recognize amino acids. Premium unlocks all advanced quiz modes and difficulty levels.

Screenshots

Codon One4 screens
Amino Acids Trainer4 screens

Verdict

The call

The clearest difference is rating: Amino Acids Trainer at 5.0 against Codon One's 4.5. Codon One's advantage is ratings volume (25 vs 1) and iOS requirement (15.6 vs 17.6). On price, update cadence, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Codon One sells 7 one-off in-app purchases and Amino Acids Trainer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Amino Acids Trainer holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Codon One has 25 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Codon One ships an update every 3 weeks, Amino Acids Trainer monthly. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 7 level
Codon One versus Amino Acids Trainer: the parameters behind the verdict, then further details
ParameterCodon OneAmino Acids Trainer
PriceFreeFree
Rating4.5 (25 ratings)5.0 (1 ratings) — better
Positive reviews76.5% of reviews—
Number of ratings25 — better1
Update frequencyEvery 3 weeks — betterMonthly
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better17.6
Further details — not scored
Size277 MB11 MB
Age rating4+4+
DeveloperDaniel GebertAlexander Mehanic

Customer experience

Codon One

All ratings25 ratings
Positive84.0%
Neutral8.0%
Negative8.0%
Written reviews17 reviews
Positive76.5%
Neutral0.0%
Negative23.5%

Amino Acids Trainer

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

7 purchases

Codon One

One-time7
  • Module 2: GeneticsFree
  • Module 1: Chemistry of LifeFree
  • Module 3: Evolution$2.99
Show 4 more
  • Module 4: Science History$2.99
  • Module 5: Cell Biology$2.99
  • Module 6: Development$2.99
  • Unlock All$8.99
1 purchases

Amino Acids Trainer

One-time1
  • Premium$3.99

Questions

Is Codon One free?
Codon One is free to download, with in-app purchases available.
Is Amino Acids Trainer free?
Amino Acids Trainer is free to download, with in-app purchases available.
Which has better reviews, Codon One or Amino Acids Trainer?
Amino Acids Trainer is rated higher. Codon One averages 4.5 out of 5 from 25 ratings, while Amino Acids Trainer averages 5.0 from 1 ratings.
Do Codon One or Amino Acids Trainer have ads?
Neither Codon One nor Amino Acids Trainer shows ads.
Which is updated more often, Codon One or Amino Acids Trainer?
Codon One ships an update every 3 weeks, and Amino Acids Trainer monthly. Most recently, Codon One was updated on November 3, 2026 and Amino Acids Trainer on October 31, 2026.

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