# True or False Chemistry vs Atomas

The clearest difference is update cadence: Atomas at monthly against True or False Chemistry's every 21 months. Atomas also leads on review sentiment (94% vs 68%) and rating (4.8 vs 4.5). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. True or False Chemistry sells 1 one-off in-app purchase and Atomas sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Atomas holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: Atomas has 3.4K ratings behind it against 72, so its average is the more settled of the two. Written reviews point the same way: 68% of True or False Chemistry's written reviews are positive against 94% of Atomas's.

True or False Chemistry ships an update every 21 months, Atomas monthly. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | True or False Chemistry | Atomas |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (72 ratings)](https://appshunter.io/ios/app/true-or-false-chemistry/id909991256/reviews) | **[4.8 (3.4K ratings)](https://appshunter.io/ios/app/atomas/id953603155/reviews)** |
| Number of ratings | 72 | **3.4K** |
| Positive reviews | 67.7% of reviews | **93.9% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 21 months | **Monthly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 4 MB | 33 MB |
| Requires iOS | **8.0** | 9.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | +4 | 4+ |
| Developer | [Peter Li](https://appshunter.io/developer/424298074) | [Max Gittel](https://appshunter.io/developer/764787722) |

## What reviewers say

### True or False Chemistry

[App page](https://appshunter.io/ios/app/true-or-false-chemistry/id909991256)

Test your knowledge of the periodic table in this fast-paced chemistry game. Verify element symbols within a time limit and compete with others on leaderboards. Share your scores on social media.

**Highlights:** Learn periodic table elements, Fast-paced gameplay, Timed challenges, Social media sharing, Leaderboard competition, Achievements

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No Ads | $0.99 | one-time |


### Atomas

[App page](https://appshunter.io/ios/app/atomas/id953603155)

Combine atoms to create new elements in this addictive puzzle game. Strategize to prevent your universe from overflowing and unlock special charms to aid your progress. Compete with friends for the highest score.

**Highlights:** Atom fusion mechanics, Element creation, Chain reactions, Lucky charms, Multiple game modes, Score comparison

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No Ads & Instant Modes Unlock | $0.99 | one-time |
| 2 Antimatter | $1.99 | one-time |
| 5 Antimatter | $2.99 | one-time |
| 10 Antimatter | $4.99 | one-time |
| 12 Antimatter | $4.99 | one-time |

**What reviewers like**

- 🚀 Addictive gameplay
- 👍 Simple and intuitive
- 🔒 No ads or in-app purchases
- 🧠 Helps learn periodic table
- 🎨 Polished and visually appealing

**What reviewers complain about**

- 🐛 Occasional glitches and bugs
- 🤔 Difficulty can feel arbitrary at times
- 🎨 Similar atom colors can be confusing
- 🔍 Lack of clear tutorials or explanations

**Reported bugs**

- Undo button not working as expected
- Game crashing when sharing scores
- Inconsistent atom behavior with certain power-ups

**Requested features**

- More game modes and challenges
- Ability to save progress and sync across devices
- Option to adjust atom colors and sizes
- Achievements and leaderboards


## Frequently asked questions

### Is True or False Chemistry free?

True or False Chemistry is free to download, with in-app purchases available.

### Is Atomas free?

Atomas is free to download, with in-app purchases available.

### Which has better reviews, True or False Chemistry or Atomas?

Atomas is rated higher. True or False Chemistry averages 4.5 out of 5 from 72 ratings, while Atomas averages 4.8 from 3.4K ratings.

### Do True or False Chemistry or Atomas have ads?

Neither True or False Chemistry nor Atomas shows ads.

### Which is updated more often, True or False Chemistry or Atomas?

True or False Chemistry ships an update every 21 months, and Atomas monthly. Most recently, True or False Chemistry was updated on October 29, 2026 and Atomas on October 30, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*