# Correct Change vs Ring Sizer

The clearest difference is in-app purchases: Correct Change at none against Ring Sizer's 2. Correct Change also leads on device support (3 vs 1) and iOS requirement (12.0 vs 18.0). Ring Sizer's advantage is update cadence (every 3 months vs every 7 months). 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. Correct Change asks for nothing beyond the download.

Correct Change ships an update every 7 months, Ring Sizer every 3 months. The most recent releases landed on October 17, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Correct Change | Ring Sizer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/ring-sizer-finger-measure-app/id6761365066/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 3 months** |
| Monetization | **Free** | Freemium |
| Size | 63 MB | 14 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [TOBES LTD](https://appshunter.io/developer/1539339323) | [GUNAYDIN APP STUDIO](https://appshunter.io/developer/1888018712) |

## What reviewers say

### Correct Change

[App page](https://appshunter.io/ios/app/correct-change/id1539910151)

This app helps users quickly calculate the correct change for customer orders. It handles situations with and without tips, ensuring accurate transactions. Avoid confusion and save time when dealing with cash payments.

**Highlights:** Calculate change for orders, Include or exclude tips, Input order cost, Input cash taken, Simple and fast calculations

**Features:** macOS Compatibility

**In-app purchases:** none


### Ring Sizer

[App page](https://appshunter.io/ios/app/ring-sizer-finger-measure-app/id6761365066)

Easily determine your perfect ring size from home using your phone's screen or camera. Get accurate measurements in seconds and convert between international sizing standards.

**Highlights:** Measure finger size on screen, Measure existing ring size on screen, Accurate camera measurement, International ring size conversion, Works offline, Easy to use interface

**Features:** Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| premium | $3.99 | per 7 days |
| premium | $29.99 | per year |


## Frequently asked questions

### Is Correct Change free?

Correct Change 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 Correct Change or Ring Sizer have ads?

Neither Correct Change nor Ring Sizer shows ads.

### Which is updated more often, Correct Change or Ring Sizer?

Correct Change ships an update every 7 months, and Ring Sizer every 3 months. Most recently, Correct Change was updated on October 17, 2026 and Ring Sizer on October 11, 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.*