# Retail Up System vs Ring Sizer

The clearest difference is update cadence: Ring Sizer at every 3 months against Retail Up System's every 13 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Retail Up System ships an update every 13 months, Ring Sizer every 3 months. The most recent releases landed on October 16, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Retail Up System | Ring Sizer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (8 ratings)](https://appshunter.io/ios/app/ring-sizer-ring-size-finder/id6760617077/reviews)** |
| Number of ratings | — | **8** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 3 months** |
| Monetization | — | Free |
| Size | 0 MB | 4 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [ProSoftware Technologies llc](https://appshunter.io/developer/666186881) | [100 Factories](https://appshunter.io/developer/1559484344) |

## What reviewers say

### Retail Up System

[App page](https://appshunter.io/ios/app/retail-up-system/id930126387)

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

**In-app purchases:** none


### Ring Sizer

[App page](https://appshunter.io/ios/app/ring-sizer-ring-size-finder/id6760617077)

Easily determine your ring size at home using your finger or an existing ring. Get results in multiple international sizing systems instantly. Save your measurements for future reference.

**Highlights:** Measure with finger, Measure with existing ring, Multiple size systems, Screen-calibrated accuracy, Save and compare measurements

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

**In-app purchases:** none


## Frequently asked questions

### Is Retail Up System free?

Retail Up System is free to download, with no in-app purchases.

### Is Ring Sizer free?

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

### Do Retail Up System or Ring Sizer have ads?

Neither Retail Up System nor Ring Sizer shows ads.

### Which is updated more often, Retail Up System or Ring Sizer?

Retail Up System ships an update every 13 months, and Ring Sizer every 3 months. Most recently, Retail Up System was updated on October 16, 2026 and Ring Sizer on October 9, 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.*