# YAT Smart Tools vs KOWOLL 28E

The clearest difference is iOS requirement: KOWOLL 28E at 10.0 against YAT Smart Tools's 15.0. 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.

YAT Smart Tools ships an update every 5 weeks, KOWOLL 28E every 3 weeks. The most recent releases landed on November 3, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | YAT Smart Tools | KOWOLL 28E |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Size | 115 MB | 45 MB |
| Requires iOS | 15.0 | **10.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [浙江亚特电器有限公司](https://appshunter.io/developer/1513697375) | [Kalman Navigation](https://appshunter.io/developer/1363987394) |

## What reviewers say

### YAT Smart Tools

[App page](https://appshunter.io/ios/app/yat-smart-tools/id1632579632)

**Features:** macOS Compatibility

**In-app purchases:** none


### KOWOLL 28E

[App page](https://appshunter.io/ios/app/kowoll-28e/id6443854438)

**In-app purchases:** none


## Frequently asked questions

### Is YAT Smart Tools free?

YAT Smart Tools is free to download, with no in-app purchases.

### Is KOWOLL 28E free?

KOWOLL 28E is free to download, with no in-app purchases.

### Do YAT Smart Tools or KOWOLL 28E have ads?

Neither YAT Smart Tools nor KOWOLL 28E shows ads.

### Which is updated more often, YAT Smart Tools or KOWOLL 28E?

YAT Smart Tools ships an update every 5 weeks, and KOWOLL 28E every 3 weeks. Most recently, YAT Smart Tools was updated on November 3, 2026 and KOWOLL 28E on October 27, 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.*