# KoreLock Admin vs Ring Sizer

The clearest difference is in-app purchases: KoreLock Admin at none against Ring Sizer's 6. Ring Sizer's advantage is update cadence (every 4 days vs every 2 months) and iOS requirement (13.4 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. Ring Sizer sells 6 in-app purchases, starting at $2.99 per 7 days. KoreLock Admin asks for nothing beyond the download.

KoreLock Admin ships an update every 2 months, Ring Sizer every 4 days. The most recent releases landed on September 27, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | KoreLock Admin | Ring Sizer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/korelock-admin/id6444193771/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 days** |
| Monetization | Free | — |
| Size | 49 MB | 46 MB |
| Requires iOS | 15.6 | **13.4** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [KoreLock, Inc.](https://appshunter.io/developer/1652983807) | [Fabrizio Beccaceci](https://appshunter.io/developer/1772065340) |

## What reviewers say

### KoreLock Admin

[App page](https://appshunter.io/ios/app/korelock-admin/id6444193771)

Manage and monitor smart locks remotely or via Bluetooth. Register devices, control access for up to 3600 users with custom schedules, and view access history. Configure lock settings like auto-lock and mute.

**Highlights:** Remote lock/unlock, User credential management, Access scheduling, Temporary guest access, Access history log, Lock settings configuration

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

**In-app purchases:** none


### Ring Sizer

[App page](https://appshunter.io/ios/app/ring-sizer-your-ring-size/id6736466968)

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ring Sizer Pro | $2.99 | per 7 days |
| Ring Sizer Pro | $5.99 | per month |
| Ring Sizer Pro | $6.99 | per month |
| Ring Sizer Pro | $29.99 | per year |
| RingSizer Lifetime | $14.99 | one-time |
| RingSizer Lifetime | $39.99 | one-time |


## Frequently asked questions

### Is KoreLock Admin free?

KoreLock Admin 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 KoreLock Admin or Ring Sizer have ads?

Neither KoreLock Admin nor Ring Sizer shows ads.

### Which is updated more often, KoreLock Admin or Ring Sizer?

KoreLock Admin ships an update every 2 months, and Ring Sizer every 4 days. Most recently, KoreLock Admin was updated on September 27, 2026 and Ring Sizer on October 2, 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.*