# The Sum vs Playcube Bit

The clearest difference is ads: Playcube Bit at none against The Sum's shown. Playcube Bit also leads on update cadence (every 3 days vs every 3 weeks). The Sum's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 17.6). On price 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.

The Sum ships an update every 3 weeks, Playcube Bit every 3 days. The most recent releases landed on October 25, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | The Sum | Playcube Bit |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Size | 144 MB | 74 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [LIM SING CHYUAN](https://appshunter.io/developer/1825404821) | [PlayCube Capes](https://appshunter.io/developer/1874209958) |

## What reviewers say

### 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


### Playcube Bit

[App page](https://appshunter.io/ios/app/playcube-bit/id6758653692)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is The Sum free?

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

### Is Playcube Bit free?

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

### Do The Sum or Playcube Bit have ads?

The Sum shows ads; Playcube Bit does not.

### Which is updated more often, The Sum or Playcube Bit?

The Sum ships an update every 3 weeks, and Playcube Bit every 3 days. Most recently, The Sum was updated on October 25, 2026 and Playcube Bit on October 14, 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.*