# AB Nails vs Kozo 2.0

The clearest difference is update cadence: AB Nails at every 2 weeks against Kozo 2.0's every 16 months. AB Nails also leads on iOS requirement (13.4 vs 15.0). 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.

AB Nails ships an update every 2 weeks, Kozo 2.0 every 16 months. The most recent releases landed on September 19, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | AB Nails | Kozo 2.0 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 16 months |
| Size | 23 MB | 44 MB |
| Requires iOS | **13.4** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Binh Nguyen](https://appshunter.io/developer/1276196598) | [Binary Numbers ITZone LLP](https://appshunter.io/developer/1328822739) |

## What reviewers say

### AB Nails

[App page](https://appshunter.io/ios/app/ab-nails/id6478906168)

**Features:** macOS Compatibility

**In-app purchases:** none


### Kozo 2.0

[App page](https://appshunter.io/ios/app/kozo-20/id6596763738)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is AB Nails free?

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

### Is Kozo 2.0 free?

Kozo 2.0 is free to download, with no in-app purchases.

### Do AB Nails or Kozo 2.0 have ads?

Neither AB Nails nor Kozo 2.0 shows ads.

### Which is updated more often, AB Nails or Kozo 2.0?

AB Nails ships an update every 2 weeks, and Kozo 2.0 every 16 months. Most recently, AB Nails was updated on September 19, 2026 and Kozo 2.0 on September 24, 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.*