# SL Check vs Ring Sizer

The clearest difference is in-app purchases: SL Check at none against Ring Sizer's 2. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Ring Sizer sells 2 in-app purchases, starting at $4.99 per 7 days. SL Check asks for nothing beyond the download.

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | SL Check | Ring Sizer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Size | 40 MB | 38 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SL Ticket](https://appshunter.io/developer/1849756922) | [Utku Gogen](https://appshunter.io/developer/1677858400) |

## What reviewers say

### SL Check

[App page](https://appshunter.io/ios/app/sl-check-in/id6754709803)

**In-app purchases:** none


### Ring Sizer

[App page](https://appshunter.io/ios/app/ring-sizer-ring-size/id6760242241)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ring Sizer Weekly | $4.99 | per 7 days |
| Ring Sizer Yearly | $14.99 | per year |


## Frequently asked questions

### Is SL Check free?

SL Check 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 SL Check or Ring Sizer have ads?

Neither SL Check nor Ring Sizer shows ads.

### Which is updated more often, SL Check or Ring Sizer?

SL Check ships an update fortnightly, and Ring Sizer fortnightly. Most recently, SL Check was updated on October 25, 2026 and Ring Sizer on October 31, 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.*