# 99Fi vs KOOF

The clearest difference is update cadence: KOOF at weekly against 99Fi's every 2 months. 99Fi's advantage is iOS requirement (12.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

99Fi ships an update every 2 months, KOOF weekly. The most recent releases landed on September 25, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | 99Fi | KOOF |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Size | 46 MB | 70 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [99Lan Inc](https://appshunter.io/developer/1790978696) | [Cashbox Incorporated](https://appshunter.io/developer/1779048417) |

## What reviewers say

### 99Fi

[App page](https://appshunter.io/ios/app/99fi/id6740659848)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### KOOF

[App page](https://appshunter.io/ios/app/koof/id6788749322)

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

**In-app purchases:** none


## Frequently asked questions

### Is 99Fi free?

99Fi is free to download, with no in-app purchases.

### Is KOOF free?

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

### Do 99Fi or KOOF have ads?

Neither 99Fi nor KOOF shows ads.

### Which is updated more often, 99Fi or KOOF?

99Fi ships an update every 2 months, and KOOF weekly. Most recently, 99Fi was updated on September 25, 2026 and KOOF on October 6, 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.*