# SumGress vs Only Three

The clearest difference is in-app purchases: Only Three at none against SumGress's 4. SumGress's advantage is update cadence (every 4 days vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. SumGress sells 2 in-app purchases, starting at $1.99 per month. Only Three asks for nothing beyond the download.

SumGress ships an update every 4 days, Only Three every 2 weeks. The most recent releases landed on September 24, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | SumGress | Only Three |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 2 weeks |
| Size | 76 MB | 32 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Maciej Gawlowski](https://appshunter.io/developer/1792186475) | [Alan Pooley](https://appshunter.io/developer/1889392820) |

## What reviewers say

### SumGress

[App page](https://appshunter.io/ios/app/sumgress/id6748936172)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| Annual | $8.99 | per year |


### Only Three

[App page](https://appshunter.io/ios/app/only-three/id6761401681)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SumGress free?

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

### Is Only Three free?

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

### Do SumGress or Only Three have ads?

Neither SumGress nor Only Three shows ads.

### Which is updated more often, SumGress or Only Three?

SumGress ships an update every 4 days, and Only Three every 2 weeks. Most recently, SumGress was updated on September 24, 2026 and Only Three on September 10, 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.*