# Ring Sizer Tool vs osaring sizer

The clearest difference is in-app purchases: osaring sizer at none against Ring Sizer Tool's 1. osaring sizer also leads on update cadence (every 4 days vs every 5 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Ring Sizer Tool sells 1 in-app purchase, starting at $19.99 per year. osaring sizer asks for nothing beyond the download.

Ring Sizer Tool ships an update every 5 weeks, osaring sizer every 4 days. The most recent releases landed on October 4, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Ring Sizer Tool | osaring sizer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (604 ratings)](https://appshunter.io/ios/app/ring-sizer-tool/id6466219535/reviews)** | — |
| Number of ratings | **604** | — |
| Positive reviews | 70.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 4 days** |
| Monetization | Subscription | — |
| Size | 68 MB | 58 MB |
| Requires iOS | 15.0 | 15 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Appcano LLC](https://appshunter.io/developer/1626754199) | [Shenzhen Huoyan Intelligence Co.,Ltd](https://appshunter.io/developer/1895154951) |

## What reviewers say

### Ring Sizer Tool

[App page](https://appshunter.io/ios/app/ring-sizer-tool/id6466219535)

Accurately measure your finger size or compare existing rings to find the perfect fit. This tool simplifies ring sizing for confident online purchases and jewelry selection.

**Highlights:** Finger measurement without a ring, Ring comparison for sizing, Intuitive and simple interface, Accurate sizing for online shopping, Suitable for buyers and jewelers

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ring Sizer Annual | $19.99 | per year |

**What reviewers like**

- 👍 Easy to use
- ✅ Accurate sizing
- 💰 Free to use
- 📱 Works with newer iPhones
- 💡 Better than paper methods

**What reviewers complain about**

- ❌ Inaccurate finger sizing
- ❌ Wildly wrong estimates
- ❌ Doesn't work for some users

**Requested features**

- Dynamically update values as slider adjusts


### 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 Tool free?

Ring Sizer Tool 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 Tool or osaring sizer have ads?

Neither Ring Sizer Tool nor osaring sizer shows ads.

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

Ring Sizer Tool ships an update every 5 weeks, and osaring sizer every 4 days. Most recently, Ring Sizer Tool was updated on October 4, 2026 and osaring sizer on October 1, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*