# Ultrahuman Ring Sizer vs AlcoH2O

The clearest difference is update cadence: AlcoH2O at every 9 days against Ultrahuman Ring Sizer's monthly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Ultrahuman Ring Sizer ships an update monthly, AlcoH2O every 9 days. The most recent releases landed on October 13, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Ultrahuman Ring Sizer | AlcoH2O |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (24 ratings)](https://appshunter.io/ios/app/ultrahuman-ring-sizer/id6452756334/reviews)** | — |
| Number of ratings | **24** | — |
| Positive reviews | 17.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 9 days** |
| Monetization | Free | — |
| Size | 45 MB | 7 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [ULTRAHUMAN HEALTHCARE PRIVATE LIMITED](https://appshunter.io/developer/1491286708) | [Marc Oliveras Garcia](https://appshunter.io/developer/1545000517) |

## 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


### AlcoH2O

[App page](https://appshunter.io/ios/app/alcoh2o/id6502008747)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Ultrahuman Ring Sizer free?

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

### Is AlcoH2O free?

AlcoH2O is free to download, with no in-app purchases.

### Do Ultrahuman Ring Sizer or AlcoH2O have ads?

Neither Ultrahuman Ring Sizer nor AlcoH2O shows ads.

### Which is updated more often, Ultrahuman Ring Sizer or AlcoH2O?

Ultrahuman Ring Sizer ships an update monthly, and AlcoH2O every 9 days. Most recently, Ultrahuman Ring Sizer was updated on October 13, 2026 and AlcoH2O on October 11, 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.*