Comparison

Codon One vs Interactive Equation Balancer

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

Interactive Equation Balancer

Features
Read full description

Learning Chemistry at school and wanting some extra practice at balancing equations, or struggling to understand and wanting some extra support. Welcome to the Interactive Equation Balancer. Solve the challenges in quiz mode by balancing each equation to unlock the next one. Once unlocked, you can revisit equations you have balanced previously, or continue from the furthest equation solved. Don't worry if you get stuck! Our interactive equation solver will choose the most appropriate method, and take you through the step by step process to balance each equation. Upgrade with the in app purchase to unlock the option to enter your own equations. If it is possible to solve the equation using the standard methods then the solution will be displayed, and the interactive equation solver can be accessed to show the steps taken to balance the equation. Please note that some equations, for example partial combustion, can not be solved without additional information and these are outside the scope of the app at this time.

Screenshots

Codon One4 screens
Interactive Equation Balancer4 screens

Verdict

The call

The clearest difference is update cadence: Codon One at every 3 weeks against Interactive Equation Balancer's every 13 months. On price, ads, in-app purchases and device support 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 Interactive Equation Balancer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Codon One ships an update every 3 weeks, Interactive Equation Balancer every 13 months. The most recent releases landed on October 10, 2026 and October 1, 2026 respectively.

Scorecard1 real difference · 9 level
Codon One versus Interactive Equation Balancer: the parameters behind the verdict, then further details
ParameterCodon OneInteractive Equation Balancer
PriceFreeFree
Rating4.5 (24 ratings) — better—
Positive reviews76.5% of reviews—
Number of ratings24 — better—
Update frequencyEvery 3 weeks — betterEvery 13 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.614.4 — better
Further details — not scored
Size277 MB1 MB
Age rating4+4+
DeveloperDaniel GebertPrelucent Limited

In-app purchases

7 purchases

Codon One

One-time7
  • Module 1: Chemistry of LifeFree
  • Module 2: Genetics$2.99
  • 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

Interactive Equation Balancer

One-time1
  • Enable User Defined Equations$1.99

Questions

Is Codon One free?
Codon One is free to download, with in-app purchases available.
Is Interactive Equation Balancer free?
Interactive Equation Balancer is free to download, with in-app purchases available.
Do Codon One or Interactive Equation Balancer have ads?
Neither Codon One nor Interactive Equation Balancer shows ads.
Which is updated more often, Codon One or Interactive Equation Balancer?
Codon One ships an update every 3 weeks, and Interactive Equation Balancer every 13 months. Most recently, Codon One was updated on October 10, 2026 and Interactive Equation Balancer on October 1, 2026.

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