# 通訳先生 vs Ring Sizer

The clearest difference is in-app purchases: 通訳先生 at none against Ring Sizer's 1. 通訳先生 also leads on iOS requirement (15.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Ring Sizer sells 1 one-off in-app purchase. 通訳先生 asks for nothing beyond the download.

## The numbers

| Metric | 通訳先生 | Ring Sizer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 4 weeks |
| Size | 1 MB | 62 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 17+ | 4+ |
| Developer | [Atsushi Yamada](https://appshunter.io/developer/301497489) | [Romiick LLC](https://appshunter.io/developer/1716146475) |

## What reviewers say

### 通訳先生

[App page](https://appshunter.io/ios/app/id6448038280)

**In-app purchases:** none


### Ring Sizer

[App page](https://appshunter.io/ios/app/ring-sizer-measure-app/id6778289987)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ring Sizer Pro | $9.99 | one-time |


## Frequently asked questions

### Is 通訳先生 free?

通訳先生 is free to download, with no in-app purchases.

### Is Ring Sizer free?

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

### Do 通訳先生 or Ring Sizer have ads?

Neither 通訳先生 nor Ring Sizer shows ads.

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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.*