# PerfectFit® vs Size rings

The clearest difference is ads: PerfectFit® at none against Size rings's shown. Size rings's advantage is update cadence (every 2 weeks vs every 6 months) and iOS requirement (16.0 vs 18.0). On price, 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.

PerfectFit® ships an update every 6 months, Size rings every 2 weeks. The most recent releases landed on October 24, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | PerfectFit® | Size rings |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/perfectfit/id1552811971/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 6 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 26 MB | 46 MB |
| Requires iOS | 18.0 | **16.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Radius Technologies](https://appshunter.io/developer/1452970152) | [Ewgeniy Isurov](https://appshunter.io/developer/1100100325) |

## What reviewers say

### PerfectFit®

[App page](https://appshunter.io/ios/app/perfectfit/id1552811971)

Measure your ring size accurately for any finger with this app. It offers a seamless solution to avoid manual fittings and solves sizing issues for online jewelry shopping. Get precise measurements down to 1/8 sizes and easy international conversions.

**Highlights:** Accurate ring size measurement, Measures any finger, Precision to 1/8 sizes, International size conversion, E-commerce integration, Customizable appearance

**In-app purchases:** none


### Size rings

[App page](https://appshunter.io/ios/app/size-rings/id6478705820)

**In-app purchases:** none


## Frequently asked questions

### Is PerfectFit® free?

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

### Is Size rings free?

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

### Do PerfectFit® or Size rings have ads?

Size rings shows ads; PerfectFit® does not.

### Which is updated more often, PerfectFit® or Size rings?

PerfectFit® ships an update every 6 months, and Size rings every 2 weeks. Most recently, PerfectFit® was updated on October 24, 2026 and Size rings on October 21, 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.*