# SumX vs grabä

The clearest difference is in-app purchases: SumX at none against grabä's 1. SumX also leads on device support (3 vs 1). grabä's advantage is update cadence (every 3 days vs every 5 days). On price, ads and iOS requirement there is nothing between them.

Both are free to download. grabä sells 1 one-off in-app purchase. SumX asks for nothing beyond the download.

SumX ships an update every 5 days, grabä every 3 days. Both last shipped on November 5, 2026.

## The numbers

| Metric | SumX | grabä |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 5 days | **Every 3 days** |
| Size | 41 MB | 112 MB |
| Requires iOS | **15.1** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [SumX Games LTD.](https://appshunter.io/developer/1872948245) | [Marc Rymann](https://appshunter.io/developer/1553502752) |

## What reviewers say

### SumX

[App page](https://appshunter.io/ios/app/sumx-daily-math-brain-puzzle/id6758439413)

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

**In-app purchases:** none


### grabä

[App page](https://appshunter.io/ios/app/graba/id6780815194)

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is SumX free?

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

### Is grabä free?

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

### Do SumX or grabä have ads?

Both SumX and grabä show ads.

### Which is updated more often, SumX or grabä?

SumX ships an update every 5 days, and grabä every 3 days. Most recently, SumX was updated on November 5, 2026 and grabä on November 5, 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.*