# ONYX vs ReiZ

ONYX and ReiZ are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

ONYX ships an update every 28 months, ReiZ every 35 months. Both last shipped on October 27, 2026.

## The numbers

| Metric | ONYX | ReiZ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 28 months** | Every 35 months |
| Size | 3 MB | 3 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Naoya Takahashi](https://appshunter.io/developer/1301211980) | [shingo kamei](https://appshunter.io/developer/1256845824) |

## What reviewers say

### ONYX

[App page](https://appshunter.io/ios/app/onyx/id1640467771)

**In-app purchases:** none


### ReiZ

[App page](https://appshunter.io/ios/app/reiz/id6443464237)

**In-app purchases:** none


## Frequently asked questions

### Is ONYX free?

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

### Is ReiZ free?

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

### Do ONYX or ReiZ have ads?

Neither ONYX nor ReiZ shows ads.

### Which is updated more often, ONYX or ReiZ?

ONYX ships an update every 28 months, and ReiZ every 35 months. Most recently, ONYX was updated on October 27, 2026 and ReiZ on October 27, 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.*