# flipn vs Ring Sizer

The clearest difference is price: Ring Sizer at Free against flipn's $0.99. Ring Sizer also leads on update cadence (every 4 months vs every 17 months). flipn's advantage is in-app purchases (none vs 3) and iOS requirement (11.0 vs 13.0). On ads and device support there is nothing between them.

Ring Sizer is free to download; flipn costs $0.99 up front. Ring Sizer sells 3 in-app purchases, starting at $3.99 per 7 days. flipn asks for nothing beyond the download.

flipn ships an update every 17 months, Ring Sizer every 4 months. The most recent releases landed on September 28, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | flipn | Ring Sizer |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[4.5 (78 ratings)](https://appshunter.io/ios/app/ring-sizer-measure-ring-size/id6477376330/reviews)** |
| Number of ratings | — | **78** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 17 months | **Every 4 months** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 14 MB | 22 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Prairie West Software Consulting](https://appshunter.io/developer/379885433) | [TECHISTIC LTD](https://appshunter.io/developer/1628067321) |

## What reviewers say

### flipn

[App page](https://appshunter.io/ios/app/flipn/id1124787358)

Easily transform your typed text into an upside-down format. Share your creatively flipped messages across various social media and messaging applications to surprise your friends.

**Highlights:** Type and flip text, Upside down text generator, Share to multiple apps, Prank friends, Simple interface

**Features:** macOS Compatibility

**In-app purchases:** none


### Ring Sizer

[App page](https://appshunter.io/ios/app/ring-sizer-measure-ring-size/id6477376330)

Easily determine your precise ring size using your iPhone's camera. Get measurements in various units and international standards, with helpful guides and sharing options.

**Highlights:** Measure ring size with iPhone camera, Metric and imperial units, International ring size standards, Visual guides for accuracy, Save and share measurements, Includes ring sizing guide

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Measure Ring Size - Ring Sizer | $3.99 | per 7 days |
| Ring Sizer App: Ring Size Tool | $8.99 | per month |
| Ring Sizer Unlimited Access | $29.99 | per year |


## Frequently asked questions

### Is flipn free?

flipn costs $0.99, with no in-app purchases.

### Is Ring Sizer free?

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

### Do flipn or Ring Sizer have ads?

Neither flipn nor Ring Sizer shows ads.

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

flipn ships an update every 17 months, and Ring Sizer every 4 months. Most recently, flipn was updated on September 28, 2026 and Ring Sizer on October 14, 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.*