Busy Binary vs Chempuz
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Busy Binary
Test your brain with a number conversion game. Convert binary to decimal in timed challenges or practice modes. Compete with others for high scores.
- Binary to Decimal Conversion
- Training Mode
- Challenge Mode
- Difficulty Levels (Easy, Normal, Hard)
- Combo System
- Global Ranking System
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Third of a "Busy" series that is "BTD" Let's try to Binary to Decimal!! 【How to play】 ・This game to convert the binary number to decimal number. · Select the correct answer from on the button of the screen and carry it. ・Select the correct answer from ・It is 2 modes of 「Training Mode」and 「Challeng Mode」 ・You can select challenge level from 「Easy」「Normal」「Hard」 「TrainingMODE」 ・It is endless mode and in here you can training freely. ・Let's get the hang of BTD. ・Touch the End button on the screen, you can end the game. Number of your correct answers and total time are display on the screen. 「ChallengeMODE」 ・In this mode, the time limit of 60 seconds. And it will test your speed of answering and accuracy. So it's best to check your ability. ・Come loaded with "Combo System" If you are formed in a succession of answer, it going to be increase speed. ・Link up with Ranking System. Post on your score and compete for scores with your rivals. -Providing Materials- Images「illust AC」 http://www.ac-illust.com Sounds「Maoudamashii」 http://maoudamashii.jokersounds.com Font「Kiyumayaen」 http://sapphire.hacca.jp/
Chempuz
Learn organic chemistry basics by creating molecules and completing puzzles. Trace functional groups to build compounds, score higher with complex structures, and use flashcards to memorize names. Enjoy learning through engaging gameplay.
- Create organic molecules by tracing functional groups
- Build approximately 100 types of organic molecules
- Score higher with more complex compound creation
- Collect discovered compounds
- Memorize molecule names with flashcards
- Learn organic chemistry through gameplay
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"Organic Chemistry Puzzle" to learn the basics of organic chemistry You can create compounds freely by tracing functional groups on the screen. You can create about 100 kinds of organic molecules. The score is high when you create complicated compounds. The collection shows compounds found. You can memorize the names of organic molecules with organic chemistry flashcards in Practice. You will learn organi chemistry while enjoying this game.
Screenshots
Verdict
The clearest difference is in-app purchases: Busy Binary at none against Chempuz's 2. Busy Binary also leads on iOS requirement (9.0 vs 15.0). On price, update cadence, ads 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
Both are free to download. Chempuz sells 2 one-off in-app purchases. Busy Binary asks for nothing beyond the download.
Busy Binary ships an update every 6 weeks, Chempuz every 5 weeks. The most recent releases landed on October 6, 2026 and October 9, 2026 respectively.
| Parameter | Busy Binary | Chempuz |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (2 ratings) — better | — |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 2 — better | — |
| Update frequency | Every 6 weeks | Every 5 weeks — better |
| Ads | Yes | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 9.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 180 MB | 57 MB |
| Age rating | 4+ | 4+ |
| Developer | teruhisa nagato | TomatoAppLab |
Customer experience
Busy Binary
Chempuz
In-app purchases
Busy Binary
No in-app purchases
Chempuz
- 1 gem$0.29
- 10 gems$1.99









