# Caloryx vs Ring Sizer & Size Finder

The clearest difference is in-app purchases: Caloryx at none against Ring Sizer & Size Finder's 1. Ring Sizer & Size Finder's advantage is update cadence (every 2 weeks vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Ring Sizer & Size Finder sells 1 one-off in-app purchase. Caloryx asks for nothing beyond the download.

Caloryx ships an update every 3 months, Ring Sizer & Size Finder every 2 weeks. The most recent releases landed on September 30, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Caloryx | Ring Sizer & Size Finder |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/ring-sizer-and-size-finder/id6761786932/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | — | Free |
| Size | 2 MB | 9 MB |
| Requires iOS | 27.0 | **26.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Calvin Fraites](https://appshunter.io/developer/1802751239) | [LimeLime Labs LLC](https://appshunter.io/developer/1002915290) |

## What reviewers say

### Caloryx

[App page](https://appshunter.io/ios/app/caloryx/id6757248997)

**Features:** Vision Pro support

**In-app purchases:** none


### Ring Sizer & Size Finder

[App page](https://appshunter.io/ios/app/ring-sizer-and-size-finder/id6761786932)

Easily determine your ring size using your iPhone's screen. Measure existing rings or your finger directly, with support for international sizing standards and a built-in ruler for everyday use.

**Highlights:** Accurate ring sizing by placing rings on screen, Finger width measurement for direct sizing, International size conversion (US, UK, EU, JP, CN), Built-in ruler for measuring objects, No extra tools required, Simple and intuitive interface

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ring Sizer Pro | $0.99 | one-time |


## Frequently asked questions

### Is Caloryx free?

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

### Is Ring Sizer & Size Finder free?

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

### Do Caloryx or Ring Sizer & Size Finder have ads?

Neither Caloryx nor Ring Sizer & Size Finder shows ads.

### Which is updated more often, Caloryx or Ring Sizer & Size Finder?

Caloryx ships an update every 3 months, and Ring Sizer & Size Finder every 2 weeks. Most recently, Caloryx was updated on September 30, 2026 and Ring Sizer & Size Finder on October 16, 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.*