# ColorEyeze vs Kioku?：Number Memory

The clearest difference is ads: Kioku?：Number Memory at none against ColorEyeze's shown. ColorEyeze's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 17.0). On price, update cadence and in-app purchases there is nothing between them.

Both are free to download. ColorEyeze sells 1 one-off in-app purchase and Kioku?：Number Memory sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 2 days. The most recent releases landed on May 17, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | ColorEyeze | Kioku?：Number Memory |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 days | Every 2 days |
| Size | 25 MB | 7 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Sezgin Sazliogullari](https://appshunter.io/developer/1787157441) | [Yuichi Hiruta](https://appshunter.io/developer/912365793) |

## What reviewers say

### ColorEyeze

[App page](https://appshunter.io/ios/app/coloreyeze/id6742713624)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


### Kioku?：Number Memory

[App page](https://appshunter.io/ios/app/kiokunumber-memory/id6782825314)

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


## Frequently asked questions

### Is ColorEyeze free?

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

### Is Kioku?：Number Memory free?

Kioku?：Number Memory is free to download, with in-app purchases available.

### Do ColorEyeze or Kioku?：Number Memory have ads?

ColorEyeze shows ads; Kioku?：Number Memory does not.

### Which is updated more often, ColorEyeze or Kioku?：Number Memory?

ColorEyeze ships an update every 2 days, and Kioku?：Number Memory every 2 days. Most recently, ColorEyeze was updated on May 17, 2026 and Kioku?：Number Memory on September 8, 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.*