# Z8 vs StillKoi

The clearest difference is update cadence: StillKoi at every 11 days against Z8's every 3 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.

Z8 ships an update every 3 months, StillKoi every 11 days. The most recent releases landed on October 24, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Z8 | StillKoi |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 11 days** |
| Size | 43 MB | 145 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [MYANCARE COMPANY LIMITED](https://appshunter.io/developer/1446006306) | [Manal Gharrabou](https://appshunter.io/developer/1868424427) |

## What reviewers say

### Z8

[App page](https://appshunter.io/ios/app/z8/id6748935878)

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

**In-app purchases:** none


### StillKoi

[App page](https://appshunter.io/ios/app/stillkoi/id6757710305)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Z8 free?

Z8 is free to download, with no in-app purchases.

### Is StillKoi free?

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

### Do Z8 or StillKoi have ads?

Neither Z8 nor StillKoi shows ads.

### Which is updated more often, Z8 or StillKoi?

Z8 ships an update every 3 months, and StillKoi every 11 days. Most recently, Z8 was updated on October 24, 2026 and StillKoi on October 11, 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.*