# G Cube vs Ring Sizer

The clearest difference is in-app purchases: G Cube at none against Ring Sizer's 2. Ring Sizer's advantage is iOS requirement (13.0 vs 18.0). 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. G Cube asks for nothing beyond the download.

G Cube ships an update monthly, Ring Sizer every 2 weeks. The most recent releases landed on October 7, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | G Cube | Ring Sizer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ring-sizer-ring-size-measure/id6756798107/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | — | Freemium |
| Size | 1 MB | 40 MB |
| Requires iOS | 18.0 | **13.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Volxjapan Co.,Ltd.](https://appshunter.io/developer/1110212709) | [Philemon Combes](https://appshunter.io/developer/1778849049) |

## What reviewers say

### G Cube

[App page](https://appshunter.io/ios/app/g-cube/id1110212710)

**Features:** macOS Compatibility

**In-app purchases:** none


### Ring Sizer

[App page](https://appshunter.io/ios/app/ring-sizer-ring-size-measure/id6756798107)

Easily and accurately measure your ring size using your smartphone. Ideal for online jewelry purchases or verifying existing ring dimensions. Offers multiple sizing systems and a clean interface.

**Highlights:** On-screen guide for measurement, Supports EU, US, UK, JP sizing, Fine-tune for accuracy, Save ring sizes, Intuitive interface

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ring Sizer weekly | $4.99 | per 7 days |
| Ring Sizer yearly | $22.99 | per year |


## Frequently asked questions

### Is G Cube free?

G Cube 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 G Cube or Ring Sizer have ads?

Neither G Cube nor Ring Sizer shows ads.

### Which is updated more often, G Cube or Ring Sizer?

G Cube ships an update monthly, and Ring Sizer every 2 weeks. Most recently, G Cube was updated on October 7, 2026 and Ring Sizer on September 29, 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.*