# BetsyTools vs KOSI

The clearest difference is iOS requirement: BetsyTools at 12.0 against KOSI's 15.6. 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.

BetsyTools ships an update monthly, KOSI every 2 months. The most recent releases landed on October 12, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | BetsyTools | KOSI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Size | 189 MB | 10 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Gesellschaft für Informatik im Betonfertigteilbau mbH](https://appshunter.io/developer/1547349006) | [IBILL SRL SEMPLIFICATA](https://appshunter.io/developer/1458513076) |

## What reviewers say

### BetsyTools

[App page](https://appshunter.io/ios/app/betsytools/id1547348704)

**Features:** macOS Compatibility

**In-app purchases:** none


### KOSI

[App page](https://appshunter.io/ios/app/kosi/id6473046077)

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

**In-app purchases:** none


## Frequently asked questions

### Is BetsyTools free?

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

### Is KOSI free?

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

### Do BetsyTools or KOSI have ads?

Neither BetsyTools nor KOSI shows ads.

### Which is updated more often, BetsyTools or KOSI?

BetsyTools ships an update monthly, and KOSI every 2 months. Most recently, BetsyTools was updated on October 12, 2026 and KOSI 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.*