# Ultrahuman Ring Sizer vs AMOVAN FIT

The clearest difference is review sentiment: AMOVAN FIT at 100% against Ultrahuman Ring Sizer's 18%. AMOVAN FIT also leads on rating (4.0 vs 2.0) and iOS requirement (13.0 vs 16.0). Ultrahuman Ring Sizer's advantage is ratings volume (24 vs 1) and update cadence (monthly vs every 3 months). On price, ads, in-app purchases and monetization model there is nothing between them.

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

AMOVAN FIT holds the better App Store score, 4.0 against 2.0. That said, the two scores are not equally well evidenced: Ultrahuman Ring Sizer has 24 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 18% of Ultrahuman Ring Sizer's written reviews are positive against 100% of AMOVAN FIT's.

Ultrahuman Ring Sizer ships an update monthly, AMOVAN FIT every 3 months. The most recent releases landed on September 19, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Ultrahuman Ring Sizer | AMOVAN FIT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (24 ratings)](https://appshunter.io/ios/app/ultrahuman-ring-sizer/id6452756334/reviews) | **[4.0 (1 ratings)](https://appshunter.io/ios/app/amovan-fit/id6470649521/reviews)** |
| Number of ratings | **24** | 1 |
| Positive reviews | 17.6% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | Free | Free |
| Size | 45 MB | 119 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [ULTRAHUMAN HEALTHCARE PRIVATE LIMITED](https://appshunter.io/developer/1491286708) | [SHENZHEN AMOVAN INDUSTRY CO.,LTD](https://appshunter.io/developer/1064017544) |

## 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


### AMOVAN FIT

[App page](https://appshunter.io/ios/app/amovan-fit/id6470649521)

This app analyzes sleep and activity data from a smart ring to provide insights into your body's status. It offers professional guidance to improve sleep and manage your activity levels, acting as a personal sleep health assistant.

**Highlights:** Sleep data display and analysis, Activity data visualization, Recovery state analysis, Smart ring management, Device firmware upgrades, Low power alerts

**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 AMOVAN FIT free?

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

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

AMOVAN FIT is rated higher. Ultrahuman Ring Sizer averages 2.0 out of 5 from 24 ratings, while AMOVAN FIT averages 4.0 from 1 ratings.

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

Neither Ultrahuman Ring Sizer nor AMOVAN FIT shows ads.

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

Ultrahuman Ring Sizer ships an update monthly, and AMOVAN FIT every 3 months. Most recently, Ultrahuman Ring Sizer was updated on September 19, 2026 and AMOVAN FIT on June 1, 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.*