# FMS vs KAF AI

The clearest difference is in-app purchases: FMS at none against KAF AI's 10. FMS also leads on update cadence (every 6 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. KAF AI sells 10 in-app purchases, starting at $49.99 per month. FMS asks for nothing beyond the download.

FMS ships an update every 6 days, KAF AI every 3 weeks. The most recent releases landed on October 28, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | FMS | KAF AI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 3 weeks |
| Size | 42 MB | 47 MB |
| Requires iOS | **14.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [PRESTATURK TEKNOLOJI A.S](https://appshunter.io/developer/1832747347) | [Simur Teknoloji A.S.](https://appshunter.io/developer/6772623681) |

## What reviewers say

### FMS

[App page](https://appshunter.io/ios/app/fms/id6756008792)

**Features:** macOS Compatibility

**In-app purchases:** none


### KAF AI

[App page](https://appshunter.io/ios/app/kaf-ai-seo-audit-tool/id6778747939)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pegasus | $49.99 | per month |
| Dragon | $162.99 | per month |
| Minotaur | $167.99 | per 6 months |
| Pegasus | $254.99 | per 6 months |
| Minotaur | $274.99 | per year |
| Pegasus | $419.99 | per year |
| Dragon | $829.99 | per 6 months |
| 500 Credits | $15.00 | one-time |
| 1000 Credits | $30.00 | one-time |
| 2000 Credits | $60.00 | one-time |


## Frequently asked questions

### Is FMS free?

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

### Is KAF AI free?

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

### Do FMS or KAF AI have ads?

Neither FMS nor KAF AI shows ads.

### Which is updated more often, FMS or KAF AI?

FMS ships an update every 6 days, and KAF AI every 3 weeks. Most recently, FMS was updated on October 28, 2026 and KAF AI on October 23, 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.*