# KXReaderKits vs Ring Sizer

The clearest difference is in-app purchases: KXReaderKits at none against Ring Sizer's 2. KXReaderKits also leads on update cadence (monthly vs every 6 months) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. Ring Sizer sells 2 in-app purchases, starting at $3.99 per 7 days. KXReaderKits asks for nothing beyond the download.

KXReaderKits ships an update monthly, Ring Sizer every 6 months. The most recent releases landed on September 22, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | KXReaderKits | Ring Sizer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 6 months |
| Size | 19 MB | 63 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [KEYXENTIC INC.](https://appshunter.io/developer/1255559704) | [APPSURGE](https://appshunter.io/developer/1473427573) |

## What reviewers say

### KXReaderKits

[App page](https://appshunter.io/ios/app/kxreaderkits/id1506709640)

**Features:** macOS Compatibility

**In-app purchases:** none


### Ring Sizer

[App page](https://appshunter.io/ios/app/ring-sizer-measure-and-try-on/id6759631149)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $3.99 | per 7 days |
| Annual | $44.99 | per year |


## Frequently asked questions

### Is KXReaderKits free?

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

### Is Ring Sizer free?

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

### Do KXReaderKits or Ring Sizer have ads?

Neither KXReaderKits nor Ring Sizer shows ads.

### Which is updated more often, KXReaderKits or Ring Sizer?

KXReaderKits ships an update monthly, and Ring Sizer every 6 months. Most recently, KXReaderKits was updated on September 22, 2026 and Ring Sizer on September 24, 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.*