# Ring Sizer vs Pass Genie

The clearest difference is in-app purchases: Pass Genie at none against Ring Sizer's 5. Pass Genie also leads on update cadence (every 4 days vs every 3 months) and iOS requirement (13.0 vs 16.6). On price, ads and device support there is nothing between them.

Both are free to download. Ring Sizer sells 5 in-app purchases, starting at $1.99 per 7 days. Pass Genie asks for nothing beyond the download.

Ring Sizer ships an update every 3 months, Pass Genie every 4 days. Both last shipped on October 23, 2026.

## The numbers

| Metric | Ring Sizer | Pass Genie |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (464 ratings)](https://appshunter.io/ios/app/ring-sizer-ring-size-meter/id1666860110/reviews)** | — |
| Number of ratings | **464** | — |
| Positive reviews | 77.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 92 MB | 24 MB |
| Requires iOS | 16.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [AppLiks Sp. z O.O.](https://appshunter.io/developer/1804335622) | [Fezhans Limited](https://appshunter.io/developer/1872006323) |

## What reviewers say

### Ring Sizer

[App page](https://appshunter.io/ios/app/ring-sizer-ring-size-meter/id1666860110)

Easily measure jewelry ring sizes using your phone's screen. Simply place your ring on the screen and adjust the slider to match its inner edge. The app provides accurate sizing in multiple international measurement systems.

**Highlights:** Measure ring size by diameter or circumference, Support for metric and imperial units, Multiple international sizing systems, Save measurement results, Integrated ruler for other measurements

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Access | $1.99 | per 7 days |
| Weekly Access | $2.99 | per 7 days |
| Weekly Access with Trial | $2.99 | per 7 days |
| Yearly Access | $3.99 | per year |
| Yearly Access | $9.99 | per year |

**What reviewers like**

- 🚀 Accurate measurements
- 👍 Intuitive interface
- 🌍 Supports multiple measurement systems
- 💾 Convenient storage of measurements
- 🌍 Worldwide compatibility

**What reviewers complain about**

- 🐛 Inaccurate measurements
- 💰 Deceptive trial/pricing
- 🔢 Limited size range

**Reported bugs**

- Incorrect size conversions
- Inconsistent performance

**Requested features**

- Dark mode option
- Additional measurement methods


### Pass Genie

[App page](https://appshunter.io/ios/app/pass-genie/id6759590556)

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

**In-app purchases:** none


## Frequently asked questions

### Is Ring Sizer free?

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

### Is Pass Genie free?

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

### Do Ring Sizer or Pass Genie have ads?

Both Ring Sizer and Pass Genie show ads.

### Which is updated more often, Ring Sizer or Pass Genie?

Ring Sizer ships an update every 3 months, and Pass Genie every 4 days. Most recently, Ring Sizer was updated on October 23, 2026 and Pass Genie on October 23, 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.*