# Ultrahuman Ring Sizer vs Ring Sizer

The clearest difference is rating: Ring Sizer at 4.5 against Ultrahuman Ring Sizer's 2.0. Ring Sizer also leads on device support (3 vs 1) and ratings volume (79 vs 24). Ultrahuman Ring Sizer's advantage is in-app purchases (none vs 3) and update cadence (monthly vs every 4 months). On price and ads there is nothing between them.

Both are free to download. Ring Sizer sells 3 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, 4.5 against 2.0. Both are backed by a comparable volume of ratings — 24 and 79 respectively.

Ultrahuman Ring Sizer ships an update monthly, Ring Sizer every 4 months. The most recent releases landed on September 19, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Ultrahuman Ring Sizer | Ring Sizer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (24 ratings)](https://appshunter.io/ios/app/ultrahuman-ring-sizer/id6452756334/reviews) | **[4.5 (79 ratings)](https://appshunter.io/ios/app/ring-sizer-measure-ring-size/id6477376330/reviews)** |
| Number of ratings | 24 | **79** |
| Positive reviews | 17.6% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 4 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 45 MB | 22 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ULTRAHUMAN HEALTHCARE PRIVATE LIMITED](https://appshunter.io/developer/1491286708) | [TECHISTIC LTD](https://appshunter.io/developer/1628067321) |

## What reviewers say

### 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


### Ring Sizer

[App page](https://appshunter.io/ios/app/ring-sizer-measure-ring-size/id6477376330)

Easily determine your precise ring size using your iPhone's camera. Get measurements in various units and international standards, with helpful guides and sharing options.

**Highlights:** Measure ring size with iPhone camera, Metric and imperial units, International ring size standards, Visual guides for accuracy, Save and share measurements, Includes ring sizing guide

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Measure Ring Size - Ring Sizer | $3.99 | per 7 days |
| Ring Sizer App: Ring Size Tool | $8.99 | per month |
| Ring Sizer Unlimited Access | $29.99 | per year |


## Frequently asked questions

### Is Ultrahuman Ring Sizer free?

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

### Is Ring Sizer free?

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

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

Ring Sizer is rated higher. Ultrahuman Ring Sizer averages 2.0 out of 5 from 24 ratings, while Ring Sizer averages 4.5 from 79 ratings.

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

Neither Ultrahuman Ring Sizer nor Ring Sizer shows ads.

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

Ultrahuman Ring Sizer ships an update monthly, and Ring Sizer every 4 months. Most recently, Ultrahuman Ring Sizer was updated on September 19, 2026 and Ring Sizer on September 24, 2026.

---

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