# baut. vs Sum

The clearest difference is ads: baut. at none against Sum's shown. Sum's advantage is iOS requirement (15.6 vs 17.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. baut. sells 2 one-off in-app purchases and Sum sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

baut. ships an update every 10 days, Sum every 11 days. The most recent releases landed on October 8, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | baut. | Sum |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (4 ratings)](https://appshunter.io/ios/app/baut/id6769613266/reviews)** | — |
| Number of ratings | **4** | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 10 days** | Every 11 days |
| Monetization | Free with in-app purchases | — |
| Size | 113 MB | 11 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Roberto Frias Nerio](https://appshunter.io/developer/1692039143) | [Yuttana Suttasupa](https://appshunter.io/developer/1273947543) |

## What reviewers say

### baut.

[App page](https://appshunter.io/ios/app/baut/id6769613266)

A minimalist arcade game testing your reflexes and timing. Survive increasingly difficult rounds with one-tap controls and unlock new visual themes. Compete for high scores and challenge friends on leaderboards.

**Highlights:** Precision one-tap gameplay, Increasing difficulty, Unlockable visual themes, Minimalist visuals, High-score focused, Hardcore mode, Game Center Leaderboards

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 5 tokens | $0.99 | one-time |
| 15 tokens | $1.99 | one-time |


### Sum

[App page](https://appshunter.io/ios/app/sum-thing-math-link-puzzle/id6809030003)

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

**In-app purchases (1)**

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


## Frequently asked questions

### Is baut. free?

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

### Is Sum free?

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

### Do baut. or Sum have ads?

Sum shows ads; baut. does not.

### Which is updated more often, baut. or Sum?

baut. ships an update every 10 days, and Sum every 11 days. Most recently, baut. was updated on October 8, 2026 and Sum on October 12, 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.*