# Chain Crash vs Perfect Sum

The clearest difference is update cadence: Perfect Sum at every 3 days against Chain Crash's every 3 months. 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.

Chain Crash ships an update every 3 months, Perfect Sum every 3 days. The most recent releases landed on October 27, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Chain Crash | Perfect Sum |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/perfect-sum/id6477300117/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Every 3 days** |
| Monetization | — | Ad-supported |
| Size | 95 MB | 139 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [omer cetin](https://appshunter.io/developer/1584332419) | [Benjamin Richy](https://appshunter.io/developer/1636888789) |

## What reviewers say

### Chain Crash

[App page](https://appshunter.io/ios/app/chain-crash/id6458587585)

**Features:** macOS Compatibility

**In-app purchases:** none


### Perfect Sum

[App page](https://appshunter.io/ios/app/perfect-sum/id6477300117)

A captivating puzzle game where you strategically place shapes on a numbered board to reach a perfect sum. Unlock new buildings and enjoy stunning visuals and rewarding animations as you progress through increasingly challenging levels.

**Highlights:** Strategic shape placement, Numbered board puzzles, Unlockable buildings, Increasing difficulty levels, Rewarding animations, Stunning visuals

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Chain Crash free?

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

### Is Perfect Sum free?

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

### Do Chain Crash or Perfect Sum have ads?

Both Chain Crash and Perfect Sum show ads.

### Which is updated more often, Chain Crash or Perfect Sum?

Chain Crash ships an update every 3 months, and Perfect Sum every 3 days. Most recently, Chain Crash was updated on October 27, 2026 and Perfect Sum on October 11, 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.*