Chemtrix vs RhythmTap
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Chemtrix
A puzzle game where you build molecules by bonding atoms. Progress through levels, discover atomic secrets, and explore molecular structures. Features a free fall mode for continuous molecule building.
- Build molecules by bonding atoms
- 24 challenging levels
- Free fall mode for continuous play
- Learn atomic bonding and molecular structures
- Features Lewis-dot notation
- Accurate energy calculations
Read full descriptionHide full description
Chemtrix is a fun arcade style puzzle game where your goal is to build molecules to progress through the game. There are 24 levels to work your way through, and on your journey you will discover the deepest secrets of the universe - how atoms bond and the structures and properties of the molecules they form. You can also play in 'free fall' mode, where new atoms drop continuously into the game board and your goal is to keep building molecules until you out of space. This is a fun game informed by real chemistry, the molecular structures you create and the way the atoms bond to each other are true to life. And extra features like lewis-dot notation and accurate energy calculations will delight discerning chemists.
RhythmTap
Read full descriptionHide full description
Welcome to RhythmTap, an addictive rhythm tapping game! Follow the music beat and tap colorful circles to complete 20 progressive levels. Key Features: - 20 levels with increasing difficulty - 12 achievements to unlock - Combo system with up to 10x multipliers - Complete game statistics - 8 sound effects + 4 background music - Vibration feedback - Detailed game guide - Free, offline, no ads Gameplay: Tap the circles appearing on screen following the rhythm. First 5 levels are super easy to get started. Later levels challenge your reflexes and timing. Build combos for higher scores! Why RhythmTap? - Simple to learn, hard to master - Addictive gameplay - Suitable for all ages - No internet required - Auto-saves progress Download now and become a Rhythm Master!
Screenshots
Verdict
The clearest difference is in-app purchases: RhythmTap at none against Chemtrix's 1. RhythmTap also leads on update cadence (daily vs weekly). Chemtrix's advantage is iOS requirement (13.0 vs 15). On price, 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. Chemtrix sells 1 one-off in-app purchase. RhythmTap asks for nothing beyond the download.
Chemtrix ships an update weekly, RhythmTap daily. The most recent releases landed on October 7, 2026 and October 5, 2026 respectively.
| Parameter | Chemtrix | RhythmTap |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (95 ratings) — better | — |
| Positive reviews | 52.1% of reviews | — |
| Number of ratings | 95 — better | — |
| Update frequency | Weekly | Daily — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.0 — better | 15 |
| Further details — not scored | ||
| Size | 23 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Sam Woolf | 莎莎 俞 |
Bugs and requests
Chemtrix
Reported bugs
11 issues- Cannot progress past level 8/9
- In-app purchase prompt missing
- Game crashes
- Levels do not unlock after purchase
- Atom spawner glitches
Show 6 moreShow fewer
- Antimatter interaction issues
- Game not scaling for larger screens
- Level 16 impossible
- Game freezes or lags
- Molecule bonding issues
- Game not saving progress
Requested features
12 requests- Add more elements and compounds
- Include a sandbox mode
- Add a time limit option for levels
- Option to choose between naming structures or vice versa
- Translate to more languages (Spanish, Polish, Vietnamese, etc.)
Show 7 moreShow fewer
- Improve touch screen interface
- Add more levels
- Freeplay mode without antimatter
- Introduce 3D molecule representations
- Show formed molecules after game
- Adjustable speed settings
- Scale for bigger screens (iPhone)
RhythmTap
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Chemtrix
- Unlock Chemtrix$0.99
RhythmTap
No in-app purchases









