# Atom Shell vs Periodic Table Game | Atomics

The clearest difference is update cadence: Periodic Table Game | Atomics at every 2 weeks against Atom Shell's every 6 months. Atom Shell's advantage is iOS requirement (9.0 vs 13.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Atom Shell ships an update every 6 months, Periodic Table Game | Atomics every 2 weeks. The most recent releases landed on September 12, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Atom Shell | Periodic Table Game | Atomics |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/atom-shell/id1477722075/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 149 MB | 22 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kamran Gasimov](https://appshunter.io/developer/1458237538) | [ARTICUNO CODING LLP](https://appshunter.io/developer/1685993801) |

## What reviewers say

### Atom Shell

[App page](https://appshunter.io/ios/app/atom-shell/id1477722075)

A puzzle game where players strategically place electrons into inner shells to score points. With over 1000 levels, it offers a challenging and engaging experience for players of all ages.

**Highlights:** Electron placement mechanics, Scoring system, 1000+ levels, Intuitive gameplay

**Features:** macOS Compatibility

**In-app purchases:** none


### Periodic Table Game | Atomics

[App page](https://appshunter.io/ios/app/periodic-table-game-atomics/id6469028713)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Atom Shell free?

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

### Is Periodic Table Game | Atomics free?

Periodic Table Game | Atomics is free to download, with no in-app purchases.

### Do Atom Shell or Periodic Table Game | Atomics have ads?

Neither Atom Shell nor Periodic Table Game | Atomics shows ads.

### Which is updated more often, Atom Shell or Periodic Table Game | Atomics?

Atom Shell ships an update every 6 months, and Periodic Table Game | Atomics every 2 weeks. Most recently, Atom Shell was updated on September 12, 2026 and Periodic Table Game | Atomics on September 16, 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.*