# Scolio NFC vs Ring Sizer

The clearest difference is in-app purchases: Scolio NFC at none against Ring Sizer's 5. Scolio NFC also leads on update cadence (every 2 days vs fortnightly) and iOS requirement (16.0 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. Ring Sizer sells 5 in-app purchases, starting at $5.99 per 7 days. Scolio NFC asks for nothing beyond the download.

Scolio NFC ships an update every 2 days, Ring Sizer fortnightly. The most recent releases landed on October 31, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Scolio NFC | Ring Sizer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.2 (6 ratings)](https://appshunter.io/ios/app/ring-sizer-size-your-finger/id6816963164/reviews)** |
| Number of ratings | — | **6** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Fortnightly |
| Monetization | — | Free with in-app purchases |
| Size | 4 MB | 52 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | iPhone | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [PhilosoftAI LLC](https://appshunter.io/developer/1820638116) | [Desidari Holding Ltd.](https://appshunter.io/developer/1576843270) |

## What reviewers say

### Scolio NFC

[App page](https://appshunter.io/ios/app/scolio-nfc/id6761299122)

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

**In-app purchases:** none


### Ring Sizer

[App page](https://appshunter.io/ios/app/ring-sizer-size-your-finger/id6816963164)

Measure your finger or an existing ring accurately on your iPhone. Get your ring size in multiple international systems, including diameter and circumference. No printing or extra tools needed.

**Highlights:** Measure existing rings on screen, Measure finger without a ring, US, UK, EU, and JP sizing, View diameter and circumference, No printing or extra tools required, Quick and simple measurement

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ring Sizer Pro - Weekly | $5.99 | per 7 days |
| Ring Sizer Weekly | $7.99 | per 7 days |
| Ring Sizer Monthly | $19.99 | per month |
| Ring Sizer Annual | $24.99 | per year |
| Ring Sizer Yearly | $49.99 | per year |


## Frequently asked questions

### Is Scolio NFC free?

Scolio NFC 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 Scolio NFC or Ring Sizer have ads?

Neither Scolio NFC nor Ring Sizer shows ads.

### Which is updated more often, Scolio NFC or Ring Sizer?

Scolio NFC ships an update every 2 days, and Ring Sizer fortnightly. Most recently, Scolio NFC was updated on October 31, 2026 and Ring Sizer on November 6, 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.*