# Ring Sizer vs osaring sizer

The clearest difference is in-app purchases: osaring sizer at none against Ring Sizer's 2. osaring sizer also leads on device support (3 vs 1) and iOS requirement (15 vs 18.6). On price, update cadence and ads there is nothing between them.

Both are free to download. Ring Sizer sells 2 in-app purchases, starting at $4.99 per 7 days. osaring sizer asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 days. The most recent releases landed on September 10, 2026 and August 18, 2026 respectively.

## The numbers

| Metric | Ring Sizer | osaring sizer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 days | Every 3 days |
| Size | 9 MB | 32 MB |
| Requires iOS | 18.6 | **15** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jack Oehling](https://appshunter.io/developer/1848598108) | [Shenzhen Huoyan Intelligence Co.,Ltd](https://appshunter.io/developer/1895154951) |

## What reviewers say

### Ring Sizer

[App page](https://appshunter.io/ios/app/ring-sizer-measuring-tool/id6759196779)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $4.99 | per 7 days |
| Yearly | $24.99 | per year |


### osaring sizer

[App page](https://appshunter.io/ios/app/osaring-sizer/id6766071045)

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

**In-app purchases:** none


## Frequently asked questions

### Is Ring Sizer free?

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

### Is osaring sizer free?

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

### Do Ring Sizer or osaring sizer have ads?

Neither Ring Sizer nor osaring sizer shows ads.

### Which is updated more often, Ring Sizer or osaring sizer?

Ring Sizer ships an update every 3 days, and osaring sizer every 3 days. Most recently, Ring Sizer was updated on September 10, 2026 and osaring sizer on August 18, 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.*