# Ultimate Tic Tac Toe Master vs Chain Reaction OG

The clearest difference is in-app purchases: Chain Reaction OG at none against Ultimate Tic Tac Toe Master's 1. Ultimate Tic Tac Toe Master's advantage is update cadence (weekly vs monthly) and iOS requirement (15.0 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. Ultimate Tic Tac Toe Master sells 1 one-off in-app purchase. Chain Reaction OG asks for nothing beyond the download.

Ultimate Tic Tac Toe Master ships an update weekly, Chain Reaction OG monthly. Both last shipped on November 5, 2026.

## The numbers

| Metric | Ultimate Tic Tac Toe Master | Chain Reaction OG |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (2 ratings)](https://appshunter.io/ios/app/chain-reaction-og/id6792323513/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Weekly** | Monthly |
| Monetization | — | Free with in-app purchases |
| Size | 56 MB | 50 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Susan Chikanbanjar](https://appshunter.io/developer/1787009325) | [Mayank Kumar Gupta](https://appshunter.io/developer/1893402187) |

## What reviewers say

### Ultimate Tic Tac Toe Master

[App page](https://appshunter.io/ios/app/ultimate-tic-tac-toe-master/id6768570150)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


### Chain Reaction OG

[App page](https://appshunter.io/ios/app/chain-reaction-og/id6792323513)

Engage in a fast-paced local multiplayer strategy game for 2-8 players. Place atoms to trigger explosive chain reactions, capture the board, and eliminate opponents. Simple to learn but requires clever planning and timing for mastery.

**Highlights:** Local multiplayer for 2-8 players, Fast-paced strategy matches, Customizable board sizes and styles, Simple controls, No account required, Unlockable orb finishes and arena skins

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

**In-app purchases:** none


## Frequently asked questions

### Is Ultimate Tic Tac Toe Master free?

Ultimate Tic Tac Toe Master is free to download, with in-app purchases available.

### Is Chain Reaction OG free?

Chain Reaction OG is free to download, with no in-app purchases.

### Do Ultimate Tic Tac Toe Master or Chain Reaction OG have ads?

Both Ultimate Tic Tac Toe Master and Chain Reaction OG show ads.

### Which is updated more often, Ultimate Tic Tac Toe Master or Chain Reaction OG?

Ultimate Tic Tac Toe Master ships an update weekly, and Chain Reaction OG monthly. Most recently, Ultimate Tic Tac Toe Master was updated on November 5, 2026 and Chain Reaction OG on November 5, 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.*