# Atomic vs Metro Idle

The clearest difference is rating: Atomic at 4.7 against Metro Idle's 3.0. Atomic also leads on update cadence (every 2 months vs every 4 months). Metro Idle's advantage is device support (3 vs 1) and iOS requirement (10.0 vs 16.6). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Atomic holds the better App Store score, 4.7 against 3.0. Both are backed by a comparable volume of ratings — 3 and 2 respectively.

Atomic ships an update every 2 months, Metro Idle every 4 months. The most recent releases landed on June 3, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Atomic | Metro Idle |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (3 ratings)](https://appshunter.io/ios/app/atomic-battle/id645381656/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/metro-idle/id6443592619/reviews) |
| Number of ratings | **3** | 2 |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | Ad-supported | Ad-supported |
| Size | 21 MB | 167 MB |
| Requires iOS | 16.6 | **10.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Dae-Hyeon Kim](https://appshunter.io/developer/630617759) | [妮 赵](https://appshunter.io/developer/1630650670) |

## What reviewers say

### Atomic

[App page](https://appshunter.io/ios/app/atomic-battle/id645381656)

Engage in a unique card game featuring nuclear power plants. Learn facts about the world's most powerful reactors while playing against friends or a computer opponent. The game's objective is to win rounds by selecting the stronger power plant.

**Highlights:** Nuclear power plant themed cards, Play against friends, Single player vs. computer, Learn facts about reactors, Slide show of power plants, Optimized graphics

**Features:** macOS Compatibility

**In-app purchases:** none


### Metro Idle

[App page](https://appshunter.io/ios/app/metro-idle/id6443592619)

Manage New York's metro system to generate revenue and expand your network. Build and optimize your subway lines to become a successful transit tycoon.

**Highlights:** Manage metro system, Generate revenue, Build and expand network, Idle gameplay mechanics, Subway line optimization

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Atomic free?

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

### Is Metro Idle free?

Metro Idle is free to download, with no in-app purchases.

### Which has better reviews, Atomic or Metro Idle?

Atomic is rated higher. Atomic averages 4.7 out of 5 from 3 ratings, while Metro Idle averages 3.0 from 2 ratings.

### Do Atomic or Metro Idle have ads?

Both Atomic and Metro Idle show ads.

### Which is updated more often, Atomic or Metro Idle?

Atomic ships an update every 2 months, and Metro Idle every 4 months. Most recently, Atomic was updated on June 3, 2026 and Metro Idle on October 24, 2026.

---

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