Comparison

Codon One vs O Level Physics Quiz

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

O Level Physics Quiz

Practice over 900 GCSE physics multiple-choice questions with this comprehensive quiz app. It offers self-assessment tests, revision notes, and covers a wide range of O Level physics topics for online homeschooling and exam preparation.

Highlights
  • 900+ MCQs
  • Self-assessment tests
  • Revision notes
  • Covers 24 physics chapters
  • Online homeschooling support
  • Free download
Features
Read full description

O level physics quiz app with free download to install physics app (iOS) to practice 900+ GCSE physics quiz based MCQs. "O Level Physics Quiz" app with trivia questions and answers, IGCSE GCE physics MCQs to solve self-assessment tests. "O Level Physics Notes" learning app worksheets with answers key helps to practice test questions for online homeschooling exam on iOS smartphones. Complete O level physics quiz app for online degree programs covers ordinary level physics course with trivia quizzes. "O Level Physics Revision" app is a quick study guide for Cambridge students, beginners' learning and home-schooling with Cambridge textbook topics as: Chapter 1: Electromagnetic waves quiz Chapter 2: Energy, work and power quiz Chapter 3: Forces quiz Chapter 4: General wave properties quiz Chapter 5: Heat capacity quiz Chapter 6: Kinematics quiz Chapter 7: Kinetic theory of particles quiz Chapter 8: Light quiz Chapter 9: Mass, weight and density quiz Chapter 10: Measurement of physical quantities quiz Chapter 11: Measurement of temperature quiz Chapter 12: Measurements quiz Chapter 13: Melting and boiling quiz Chapter 14: Pressure quiz Chapter 15: Properties and mechanics of matter quiz Chapter 16: Simple kinetic theory of matter quiz Chapter 17: Sound quiz Chapter 18: Speed, velocity and acceleration quiz Chapter 19: Temperature quiz Chapter 20: Thermal energy quiz Chapter 21: Thermal properties of matter quiz Chapter 22: Transfer of thermal energy quiz Chapter 23: Turning effects of forces quiz Chapter 24: Waves physics quiz Download "Electromagnetic Waves Quiz" app to install revision notes with MCQs: Electromagnetic waves. Download "Energy, Work and Power Quiz" app to install revision notes with MCQs: Work, power, energy, efficiency, and units. Download "Forces Quiz" app to install revision notes with MCQs: Introduction to forces, balanced forces and unbalanced forces, acceleration of freefall, effects of forces on motion, scalar, and vector. Download "Heat Capacity Quiz" app to install revision notes with MCQs: Heat capacity, and specific heat capacity. Download "Kinematics Quiz" app to install revision notes with MCQs: Acceleration free fall, acceleration, distance, time, speed, and velocity. Download "Mass, Weight and Density Quiz" app to install revision notes with MCQs: Mass, weight, density, inertia, and measurement of density. Download "Measurement of Physical Quantities Quiz" app to install revision notes with MCQs: Physical quantities, SI units, measurement of density and time, precision, and range. Download "Pressure Quiz" app to install revision notes with MCQs: Introduction to pressure, atmospheric pressure, weather, hydraulic systems, pressure in liquids, and gases. Download "Kinetic Theory of Matter Quiz" app to install revision notes with MCQs: Evidence of molecular motion, kinetic molecular model of matter, pressure in gases, and states of matter. Download "Speed, Velocity and Acceleration Quiz" app to install revision notes with MCQs: Speed, velocity, acceleration, displacement and velocity time graph. Download "Temperature Quiz" app to install revision notes with MCQs: What is temperature, and temperature scales. Download "Thermal Energy Quiz" app to install revision notes with MCQs: Thermal energy transfer applications, conduction, convection, radiation, rate of infrared radiations, and total internal reflection. Download "Thermal Properties of Matter Quiz" app to install revision notes with MCQs: Thermal properties, condensation, boiling point, water and air, latent heat, melting and solidification, specific heat capacity. AND MANY MORE TOPICS! "O Level Physics MCQ" app helps to solve physics multiple choice questions from every chapter, comparing with answer key after every 10 random trivia quiz questions. Looking forward to provide best user experience through O level physics application!

Screenshots

Codon One4 screens
O Level Physics Quiz4 screens

Verdict

The call

The clearest difference is rating: O Level Physics Quiz at 5.0 against Codon One's 4.5. O Level Physics Quiz also leads on iOS requirement (12.0 vs 15.6). Codon One's advantage is ads (none vs shown) and ratings volume (25 vs 3). On price, update cadence, in-app purchases and monetization model 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 O Level Physics Quiz sells 7 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

O Level Physics Quiz 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 3, so its average is the more settled of the two.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 weeks. Both last shipped on November 3, 2026.

Scorecard4 real differences · 6 level
Codon One versus O Level Physics Quiz: the parameters behind the verdict, then further details
ParameterCodon OneO Level Physics Quiz
PriceFreeFree
Rating4.5 (25 ratings)5.0 (3 ratings) — better
Positive reviews76.5% of reviews—
Number of ratings25 — better3
Update frequencyEvery 3 weeksEvery 3 weeks
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.612.0 — better
Further details — not scored
Size277 MB68 MB
Age rating4+4+
DeveloperDaniel GebertArshad Iqbal

Customer experience

Codon One

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

O Level Physics Quiz

All ratings3 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
7 purchases

O Level Physics Quiz

Subscriptions4
  • 1 Month Package3 Days trial$4.991 Month
  • 3 Months Package7 Days trial$9.993 Months
  • 6 Months Package3 Days trial$14.996 Months
Show 1 more
  • 1 Year Package7 Days trial$19.991 Year
One-time3
  • 1500 Coins$0.99
  • 3500 Coins$1.99
  • 6000 Coins$2.99

Questions

Is Codon One free?
Codon One is free to download, with in-app purchases available.
Is O Level Physics Quiz free?
O Level Physics Quiz is free to download, with in-app purchases available.
Which has better reviews, Codon One or O Level Physics Quiz?
O Level Physics Quiz is rated higher. Codon One averages 4.5 out of 5 from 25 ratings, while O Level Physics Quiz averages 5.0 from 3 ratings.
Do Codon One or O Level Physics Quiz have ads?
O Level Physics Quiz shows ads; Codon One does not.
Which is updated more often, Codon One or O Level Physics Quiz?
Codon One ships an update every 3 weeks, and O Level Physics Quiz every 3 weeks. Most recently, Codon One was updated on November 3, 2026 and O Level Physics Quiz on November 3, 2026.

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