# Ring Sizer vs Top Kids

The clearest difference is in-app purchases: Top Kids at none against Ring Sizer's 3. Top Kids also leads on update cadence (every 6 days vs every 4 months). Ring Sizer's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 18.4). On price and ads there is nothing between them.

Both are free to download. Ring Sizer sells 3 in-app purchases, starting at $3.99 per 7 days. Top Kids asks for nothing beyond the download.

Ring Sizer ships an update every 4 months, Top Kids every 6 days. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Ring Sizer | Top Kids |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (81 ratings)](https://appshunter.io/ios/app/ring-sizer-measure-ring-size/id6477376330/reviews)** | — |
| Number of ratings | **81** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 6 days** |
| Monetization | Free with in-app purchases | — |
| Size | 22 MB | 44 MB |
| Requires iOS | **13.0** | 18.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [TECHISTIC LTD](https://appshunter.io/developer/1628067321) | [SAGA FOR SOLUTIONS](https://appshunter.io/developer/1724574145) |

## What reviewers say

### Ring Sizer

[App page](https://appshunter.io/ios/app/ring-sizer-measure-ring-size/id6477376330)

Easily determine your precise ring size using your iPhone's camera. Get measurements in various units and international standards, with helpful guides and sharing options.

**Highlights:** Measure ring size with iPhone camera, Metric and imperial units, International ring size standards, Visual guides for accuracy, Save and share measurements, Includes ring sizing guide

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Measure Ring Size - Ring Sizer | $3.99 | per 7 days |
| Ring Sizer App: Ring Size Tool | $8.99 | per month |
| Ring Sizer Unlimited Access | $29.99 | per year |


### Top Kids

[App page](https://appshunter.io/ios/app/top-kids/id6803709864)

**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 Top Kids free?

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

### Do Ring Sizer or Top Kids have ads?

Neither Ring Sizer nor Top Kids shows ads.

### Which is updated more often, Ring Sizer or Top Kids?

Ring Sizer ships an update every 4 months, and Top Kids every 6 days. Most recently, Ring Sizer was updated on October 27, 2026 and Top Kids on October 25, 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.*