# Revox vs Ring Sizer

The clearest difference is in-app purchases: Revox at none against Ring Sizer's 2. Revox also leads on device support (3 vs 1) and iOS requirement (15.1 vs 17.0). Ring Sizer's advantage is update cadence (weekly vs every 4 months). On price and ads there is nothing between them.

Both are free to download. Ring Sizer sells 2 in-app purchases, starting at $9.99 per year. Revox asks for nothing beyond the download.

Revox ships an update every 4 months, Ring Sizer weekly. The most recent releases landed on October 18, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | Revox | Ring Sizer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Weekly** |
| Size | 33 MB | 9 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Kliv Spahiu](https://appshunter.io/developer/1867066303) | [Heinz Meier](https://appshunter.io/developer/1824697405) |

## What reviewers say

### Revox

[App page](https://appshunter.io/ios/app/revox-silent-reminder/id6759811902)

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

**In-app purchases:** none


### Ring Sizer

[App page](https://appshunter.io/ios/app/ring-sizer-ring-size-finder/id6787279321)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hush Pro Yearly | $9.99 | per year |
| Hush Pro Lifetime | $14.99 | one-time |


## Frequently asked questions

### Is Revox free?

Revox 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 Revox or Ring Sizer have ads?

Neither Revox nor Ring Sizer shows ads.

### Which is updated more often, Revox or Ring Sizer?

Revox ships an update every 4 months, and Ring Sizer weekly. Most recently, Revox was updated on October 18, 2026 and Ring Sizer on October 23, 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.*