Comparison

Chemtrix vs RhythmTap

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

Head to head
About

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.

Highlights
  • 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
Features
Read 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.

About

RhythmTap

Features
Read 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

Chemtrix4 screens
RhythmTap4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Chemtrix sells 1 one-off in-app purchase. RhythmTap asks for nothing beyond the download.

UpkeepUpdate frequency

Chemtrix ships an update weekly, RhythmTap daily. The most recent releases landed on October 7, 2026 and October 5, 2026 respectively.

Scorecard3 real differences · 7 level
Chemtrix versus RhythmTap: the parameters behind the verdict, then further details
ParameterChemtrixRhythmTap
PriceFreeFree
Rating4.8 (95 ratings) — better—
Positive reviews52.1% of reviews—
Number of ratings95 — better—
Update frequencyWeeklyDaily — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPodiPhone, iPod
Requires iOS13.0 — better15
Further details — not scored
Size23 MB10 MB
Age rating4+4+
DeveloperSam 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 more
  • 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 more
  • 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

1 purchases

Chemtrix

One-time1
  • Unlock Chemtrix$0.99
None

RhythmTap

No in-app purchases

Questions

Is Chemtrix free?
Chemtrix is free to download, with in-app purchases available.
Is RhythmTap free?
RhythmTap is free to download, with no in-app purchases.
Do Chemtrix or RhythmTap have ads?
Neither Chemtrix nor RhythmTap shows ads.
Which is updated more often, Chemtrix or RhythmTap?
Chemtrix ships an update weekly, and RhythmTap daily. Most recently, Chemtrix was updated on October 7, 2026 and RhythmTap on October 5, 2026.

Other comparisons