# PatchWall vs The Sum

The clearest difference is iOS requirement: The Sum at 13.0 against PatchWall's 15.6. On price, update cadence, 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.

PatchWall ships an update fortnightly, The Sum every 3 weeks. The most recent releases landed on September 14, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | PatchWall | The Sum |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Size | 25 MB | 144 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Federico Gherardi](https://appshunter.io/developer/461560272) | [LIM SING CHYUAN](https://appshunter.io/developer/1825404821) |

## What reviewers say

### PatchWall

[App page](https://appshunter.io/ios/app/patchwall/id6754010105)

**In-app purchases:** none


### The Sum

[App page](https://appshunter.io/ios/app/the-sum-math-and-puzzle/id6757253249)

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

**In-app purchases:** none


## Frequently asked questions

### Is PatchWall free?

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

### Is The Sum free?

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

### Do PatchWall or The Sum have ads?

Both PatchWall and The Sum show ads.

### Which is updated more often, PatchWall or The Sum?

PatchWall ships an update fortnightly, and The Sum every 3 weeks. Most recently, PatchWall was updated on September 14, 2026 and The Sum on September 18, 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.*