# AB LegSize vs Koe Nikki

The clearest difference is update cadence: Koe Nikki at every 3 days against AB LegSize's every 2 months. 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 LegSize ships an update every 2 months, Koe Nikki every 3 days. The most recent releases landed on October 3, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | AB LegSize | Koe Nikki |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 days** |
| Size | 6 MB | 33 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Alexander Berkovich](https://appshunter.io/developer/1460157188) | [Peinan Zhang](https://appshunter.io/developer/1874493903) |

## What reviewers say

### AB LegSize

[App page](https://appshunter.io/ios/app/ab-legsize/id6449621193)

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

**In-app purchases:** none


### Koe Nikki

[App page](https://appshunter.io/ios/app/koe-nikki/id6758688857)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is AB LegSize free?

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

### Is Koe Nikki free?

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

### Do AB LegSize or Koe Nikki have ads?

Neither AB LegSize nor Koe Nikki shows ads.

### Which is updated more often, AB LegSize or Koe Nikki?

AB LegSize ships an update every 2 months, and Koe Nikki every 3 days. Most recently, AB LegSize was updated on October 3, 2026 and Koe Nikki on October 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.*