# La Coupe Studio vs The Diamond Store Ring Sizer

La Coupe Studio and The Diamond Store Ring Sizer are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

La Coupe Studio ships an update every 10 months, The Diamond Store Ring Sizer every 8 months. The most recent releases landed on September 17, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | La Coupe Studio | The Diamond Store Ring Sizer |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 23.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 8 months** |
| Monetization | — | Free |
| Size | 48 MB | 5 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Phorest](https://appshunter.io/developer/623199517) | [TheDiamondStore.co.uk](https://appshunter.io/developer/981926075) |

## What reviewers say

### La Coupe Studio

[App page](https://appshunter.io/ios/app/la-coupe-studio/id929066296)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### The Diamond Store Ring Sizer

[App page](https://appshunter.io/ios/app/the-diamond-store-ring-sizer/id972698219)

Easily determine ring sizes in UK, EU, or USA measurements using your phone. Simply place an existing ring on your screen and adjust a circle to match its inner diameter, perfect for keeping gifts a surprise.

**Highlights:** Accurate ring size measurement, Supports UK, EU, and USA sizing, Covers all sizes F-Z, Easy to use interface, Keeps gift purchases a surprise

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is La Coupe Studio free?

La Coupe Studio is free to download, with no in-app purchases.

### Is The Diamond Store Ring Sizer free?

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

### Do La Coupe Studio or The Diamond Store Ring Sizer have ads?

Neither La Coupe Studio nor The Diamond Store Ring Sizer shows ads.

### Which is updated more often, La Coupe Studio or The Diamond Store Ring Sizer?

La Coupe Studio ships an update every 10 months, and The Diamond Store Ring Sizer every 8 months. Most recently, La Coupe Studio was updated on September 17, 2026 and The Diamond Store 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.*