# Chain Rules vs HamTower

The clearest difference is in-app purchases: Chain Rules at none against HamTower's 2. HamTower's advantage is update cadence (every 9 days vs every 8 months) and iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. HamTower sells 2 one-off in-app purchases. Chain Rules asks for nothing beyond the download.

Chain Rules ships an update every 8 months, HamTower every 9 days. The most recent releases landed on November 5, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Chain Rules | HamTower |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (2 ratings)](https://appshunter.io/ios/app/chain-rules/id6759476349/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 8 months | **Every 9 days** |
| Monetization | Ad-supported | — |
| Size | 16 MB | 57 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Upstream Partners, LLC](https://appshunter.io/developer/1864248680) | [Kyosuke Takahashi](https://appshunter.io/developer/1393537221) |

## What reviewers say

### Chain Rules

[App page](https://appshunter.io/ios/app/chain-rules/id6759476349)

A block-matching puzzle game where you strategically remove blocks and trigger chain reactions. Between rounds, select unique abilities that alter gameplay, offering a fresh challenge with each session. Enjoy varied difficulty modes and high score tracking.

**Highlights:** Block matching gameplay, Trigger chain reactions, Select game-altering abilities, Dynamic board challenges, Multiple difficulty modes, High score tracking, Offline play

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

**In-app purchases:** none


### HamTower

[App page](https://appshunter.io/ios/app/hamtower/id6760577091)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Gacha Ticket | $1.99 | one-time |
| Remove Ads | $7.99 | one-time |


## Frequently asked questions

### Is Chain Rules free?

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

### Is HamTower free?

HamTower is free to download, with in-app purchases available.

### Do Chain Rules or HamTower have ads?

Both Chain Rules and HamTower show ads.

### Which is updated more often, Chain Rules or HamTower?

Chain Rules ships an update every 8 months, and HamTower every 9 days. Most recently, Chain Rules was updated on November 5, 2026 and HamTower on November 9, 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.*