# One Plus Two = 3 vs Idle Atom inc.

The clearest difference is rating: Idle Atom inc. at 4.6 against One Plus Two = 3's 3.0. Idle Atom inc. also leads on ratings volume (359 vs 4) and review sentiment (84% vs 60%). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. One Plus Two = 3 sells 2 one-off in-app purchases and Idle Atom inc. sells 23 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Idle Atom inc. holds the better App Store score, 4.6 against 3.0. That said, the two scores are not equally well evidenced: Idle Atom inc. has 359 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 60% of One Plus Two = 3's written reviews are positive against 84% of Idle Atom inc.'s.

One Plus Two = 3 ships an update every 2 months, Idle Atom inc. fortnightly. The most recent releases landed on September 7, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | One Plus Two = 3 | Idle Atom inc. |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (4 ratings)](https://appshunter.io/ios/app/one-plus-two-3/id1473746933/reviews) | **[4.6 (359 ratings)](https://appshunter.io/ios/app/idle-atom-inc-element-merge/id6676996063/reviews)** |
| Number of ratings | 4 | **359** |
| Positive reviews | 60.0% of reviews | **84.2% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 27 MB | 263 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Alexey Izvalov](https://appshunter.io/developer/1437172357) | [Arsen Asoian](https://appshunter.io/developer/1844549353) |

## What reviewers say

### One Plus Two = 3

[App page](https://appshunter.io/ios/app/one-plus-two-3/id1473746933)

Engage your mind with a unique puzzle game that blends numbers and letters. Solve challenges by translating numerical values into descriptive phrases using a given set of letters. Earn power-ups as you progress through increasingly complex mathematical and linguistic riddles.

**Highlights:** Number to phrase translation, Mathematical operations integration, Use all provided letters, Result must match target number, Power-up rewards, Hidden gameplay hints

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 100 Hint Bulbs | $0.99 | one-time |
| 1000 Hint Bulbs | $4.99 | one-time |


### Idle Atom inc.

[App page](https://appshunter.io/ios/app/idle-atom-inc-element-merge/id6676996063)

Build an energy mining empire by merging atoms and advancing through the periodic table. Upgrade your laboratory, unlock new technologies, and manage a team of scientists to discover antimatter and operate advanced scientific equipment. This offline idle simulator offers strategic development and incremental growth.

**Highlights:** Atom merging and element progression, Offline gameplay, Idle progression and automation, Laboratory and technology upgrades, Scientific team management, Incremental growth simulation, Clicker mechanics for faster generation

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

**In-app purchases (23)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pack 1 (Antimater) | $0.99 | one-time |
| + 10 Quants | $0.99 | one-time |
| Removing banner ads | $0.99 | one-time |
| One coffee please | $0.99 | one-time |
| Student starter pack | $0.99 | one-time |
| + 25 Quants | $0.99 | one-time |
| Pack 2 (Antimater) | $1.99 | one-time |
| One burger please | $1.99 | one-time |
| Starter pack - Big Version | $1.99 | one-time |
| + 50 quants | $2.99 | one-time |
| Quantbox small | $3.99 | one-time |
| 100 + 10 quants | $3.99 | one-time |
| Pack 3 (Antimater) | $4.99 | one-time |
| 250 + 25 quants | $5.99 | one-time |
| Raise the programmer's level | $5.99 | one-time |
| Pump up the designer | $7.99 | one-time |
| 500 + 50 quants | $8.99 | one-time |
| Quantbox medium | $9.99 | one-time |
| Remove All Ads | $9.99 | one-time |
| Pack 4 (Antimater) | $19.99 | one-time |
| Quant 1500 + 500 | $19.99 | one-time |
| Pack 5 (Antimater) | $59.99 | one-time |
| Quants 5500 + 1500 | $59.99 | one-time |

**What reviewers like**

- 🚀 Fun and addictive
- 🔍 Informative and educational
- 🕹️ Engaging gameplay
- 🕰️ Good time killer

**What reviewers complain about**

- 🐛 Bugs and glitches
- 🔍 Lack of explanations and tutorials
- ⏳ Slow offline progression
- 💰 Aggressive monetization

**Reported bugs**

- Atom merging issues
- Reward ads not working
- Restore purchases not working

**Requested features**

- Offline event progress
- In-game wiki/guide
- Cross-platform save sync


## Frequently asked questions

### Is One Plus Two = 3 free?

One Plus Two = 3 is free to download, with in-app purchases available.

### Is Idle Atom inc. free?

Idle Atom inc. is free to download, with in-app purchases available.

### Which has better reviews, One Plus Two = 3 or Idle Atom inc.?

Idle Atom inc. is rated higher. One Plus Two = 3 averages 3.0 out of 5 from 4 ratings, while Idle Atom inc. averages 4.6 from 359 ratings.

### Do One Plus Two = 3 or Idle Atom inc. have ads?

Both One Plus Two = 3 and Idle Atom inc. show ads.

### Which is updated more often, One Plus Two = 3 or Idle Atom inc.?

One Plus Two = 3 ships an update every 2 months, and Idle Atom inc. fortnightly. Most recently, One Plus Two = 3 was updated on September 7, 2026 and Idle Atom inc. on September 21, 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.*