# Idle Atom inc. vs Magekeep Siege

The clearest difference is in-app purchases: Magekeep Siege at none against Idle Atom inc.'s 23. Magekeep Siege also leads on ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Idle Atom inc. sells 23 one-off in-app purchases. Magekeep Siege asks for nothing beyond the download.

## The numbers

| Metric | Idle Atom inc. | Magekeep Siege |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (359 ratings)](https://appshunter.io/ios/app/idle-atom-inc-element-merge/id6676996063/reviews)** | — |
| Number of ratings | **359** | — |
| Positive reviews | 85.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | — |
| Monetization | Free with in-app purchases | — |
| Size | 263 MB | 55 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Arsen Asoian](https://appshunter.io/developer/1844549353) | [Alexandr Korsak](https://appshunter.io/developer/1447001028) |

## What reviewers say

### 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


### Magekeep Siege

[App page](https://appshunter.io/ios/app/magekeep-siege/id6794410366)

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

**In-app purchases:** none


## Frequently asked questions

### Is Idle Atom inc. free?

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

### Is Magekeep Siege free?

Magekeep Siege is free to download, with no in-app purchases.

### Do Idle Atom inc. or Magekeep Siege have ads?

Idle Atom inc. shows ads; Magekeep Siege does not.

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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.*