# KIT KeepInTouch vs SOSmaths

The clearest difference is iOS requirement: SOSmaths at 11.0 against KIT KeepInTouch's 13.0. 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.

KIT KeepInTouch ships an update every 13 months, SOSmaths every 11 months. The most recent releases landed on October 1, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | KIT KeepInTouch | SOSmaths |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 11 months** |
| Size | 8 MB | 78 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [David Deprouw](https://appshunter.io/developer/1447929404) | [DEUSE](https://appshunter.io/developer/1291290064) |

## What reviewers say

### KIT KeepInTouch

[App page](https://appshunter.io/ios/app/kit-keepintouch/id1450304818)

**Features:** macOS Compatibility

**In-app purchases:** none


### SOSmaths

[App page](https://appshunter.io/ios/app/sosmaths/id1483450176)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is KIT KeepInTouch free?

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

### Is SOSmaths free?

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

### Do KIT KeepInTouch or SOSmaths have ads?

Neither KIT KeepInTouch nor SOSmaths shows ads.

### Which is updated more often, KIT KeepInTouch or SOSmaths?

KIT KeepInTouch ships an update every 13 months, and SOSmaths every 11 months. Most recently, KIT KeepInTouch was updated on October 1, 2026 and SOSmaths on October 3, 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.*