# Ultrahuman Ring Sizer vs EV Check In

The clearest difference is rating: EV Check In at 5.0 against Ultrahuman Ring Sizer's 2.0. EV Check In also leads on update cadence (every 2 days vs monthly) and device support (3 vs 1). Ultrahuman Ring Sizer's advantage is ratings volume (24 vs 1). 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.

EV Check In holds the better App Store score, 5.0 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.

Ultrahuman Ring Sizer ships an update monthly, EV Check In every 2 days. The most recent releases landed on October 13, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Ultrahuman Ring Sizer | EV Check In |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (24 ratings)](https://appshunter.io/ios/app/ultrahuman-ring-sizer/id6452756334/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ev-check-in/id6762039403/reviews)** |
| Number of ratings | **24** | 1 |
| Positive reviews | 17.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 days** |
| Monetization | Free | Free |
| Size | 45 MB | 32 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ULTRAHUMAN HEALTHCARE PRIVATE LIMITED](https://appshunter.io/developer/1491286708) | [CrewSwap app LLC](https://appshunter.io/developer/1787729654) |

## 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


### EV Check In

[App page](https://appshunter.io/ios/app/ev-check-in/id6762039403)

This free app provides real-time information on EV charger availability, powered by user check-ins. Avoid wasted trips by seeing if a charger is in use before you arrive. Users can contribute by scanning QR codes and updating charger status.

**Highlights:** Real-time charger status, Community-powered updates, QR code scanner, User check-ins, Contribute to community data

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

**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 EV Check In free?

EV Check In is free to download, with no in-app purchases.

### Which has better reviews, Ultrahuman Ring Sizer or EV Check In?

EV Check In is rated higher. Ultrahuman Ring Sizer averages 2.0 out of 5 from 24 ratings, while EV Check In averages 5.0 from 1 ratings.

### Do Ultrahuman Ring Sizer or EV Check In have ads?

Neither Ultrahuman Ring Sizer nor EV Check In shows ads.

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

Ultrahuman Ring Sizer ships an update monthly, and EV Check In every 2 days. Most recently, Ultrahuman Ring Sizer was updated on October 13, 2026 and EV Check In on October 12, 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.*