# FFT JAPAN vs chainRing

The clearest difference is ads: FFT JAPAN at none against chainRing's shown. FFT JAPAN also leads on iOS requirement (13.0 vs 16.6). chainRing's advantage is update cadence (weekly vs monthly). On price, 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.

FFT JAPAN ships an update monthly, chainRing weekly. The most recent releases landed on October 25, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | FFT JAPAN | chainRing |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Weekly** |
| Size | 37 MB | 70 MB |
| Requires iOS | **13.0** | 16.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [ラブストック株式会社](https://appshunter.io/developer/1548241112) | [Itsuki Koide](https://appshunter.io/developer/6797880025) |

## What reviewers say

### FFT JAPAN

[App page](https://appshunter.io/ios/app/fft-japan/id6752320396)

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

**In-app purchases:** none


### chainRing

[App page](https://appshunter.io/ios/app/chainring/id6797880022)

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

**In-app purchases:** none


## Frequently asked questions

### Is FFT JAPAN free?

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

### Is chainRing free?

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

### Do FFT JAPAN or chainRing have ads?

chainRing shows ads; FFT JAPAN does not.

### Which is updated more often, FFT JAPAN or chainRing?

FFT JAPAN ships an update monthly, and chainRing weekly. Most recently, FFT JAPAN was updated on October 25, 2026 and chainRing on October 29, 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.*