# Ring Sizer vs Ultrahuman Ring Sizer

The clearest difference is rating: Ring Sizer at 2.7 against Ultrahuman Ring Sizer's 2.0. Ring Sizer also leads on review sentiment (50% vs 18%) and device support (3 vs 1). Ultrahuman Ring Sizer's advantage is in-app purchases (none vs 2) and ads (none vs shown). On price and ratings volume there is nothing between them.

Both are free to download. Ring Sizer sells 2 in-app purchases, starting at $3.99 per 7 days. Ultrahuman Ring Sizer asks for nothing beyond the download.

Ring Sizer holds the better App Store score, 2.7 against 2.0. Both are backed by a comparable volume of ratings — 14 and 24 respectively. Written reviews point the same way: 50% of Ring Sizer's written reviews are positive against 18% of Ultrahuman Ring Sizer's.

Ring Sizer ships an update every 2 months, Ultrahuman Ring Sizer monthly. The most recent releases landed on August 21, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Ring Sizer | Ultrahuman Ring Sizer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.7 (14 ratings)](https://appshunter.io/ios/app/ring-sizer-ring-fing/id6444123111/reviews)** | [2.0 (24 ratings)](https://appshunter.io/ios/app/ultrahuman-ring-sizer/id6452756334/reviews) |
| Number of ratings | 14 | **24** |
| Positive reviews | **50.0% of reviews** | 17.6% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 18 MB | 45 MB |
| Requires iOS | **14.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Irina Scelcunova](https://appshunter.io/developer/1737748446) | [ULTRAHUMAN HEALTHCARE PRIVATE LIMITED](https://appshunter.io/developer/1491286708) |

## What reviewers say

### Ring Sizer

[App page](https://appshunter.io/ios/app/ring-sizer-ring-fing/id6444123111)

Accurately measure rings, jewelry, and other objects using advanced AR technology and a digital ruler. Supports multiple international sizing systems for precise fitting.

**Highlights:** Measure rings and jewelry with AR, Digital ruler for object measurement, Supports US, AU/GB, EU/ISO, JP/CN sizing, AR tape measure functionality, Precise diamond/gemstone ring sizing

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ring Sizer | $3.99 | per 7 days |
| Ring Fing Vip for three months | $9.99 | per 3 months |


### Ultrahuman Ring Sizer

[App page](https://appshunter.io/ios/app/ultrahuman-ring-sizer/id6452756334)

Instantly determine your ring size by taking a photo of your hand. The app uses advanced AI vision algorithms to accurately calculate your perfect fit, requiring only a standard-sized card in the frame for reference.

**Highlights:** Instant ring size calculation, AI-powered vision algorithm, Photo-based measurement, Requires standard card for reference, Accurate fit determination

**In-app purchases:** none


## Frequently asked questions

### Is Ring Sizer free?

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

### Is Ultrahuman Ring Sizer free?

Ultrahuman Ring Sizer is free to download, with no in-app purchases.

### Which has better reviews, Ring Sizer or Ultrahuman Ring Sizer?

Ring Sizer is rated higher. Ring Sizer averages 2.7 out of 5 from 14 ratings, while Ultrahuman Ring Sizer averages 2.0 from 24 ratings.

### Do Ring Sizer or Ultrahuman Ring Sizer have ads?

Ring Sizer shows ads; Ultrahuman Ring Sizer does not.

### Which is updated more often, Ring Sizer or Ultrahuman Ring Sizer?

Ring Sizer ships an update every 2 months, and Ultrahuman Ring Sizer monthly. Most recently, Ring Sizer was updated on August 21, 2026 and Ultrahuman Ring Sizer on September 19, 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.*