# Ring Sizer AI: Size Finder — No.1 PPI Calibrated Ring Sizer

> AI-powered tool for precise ring size measurement and conversion. (iPhone/iPad app by 嵩 张.)

- Source: https://appshunter.io/ios/app/ring-sizer-ai-size-finder/id6758885711 (this page in markdown: same URL + `.md`)
- Developer: [嵩 张](https://appshunter.io/developer/1864792206)
- Category: Utilities, Lifestyle
- Price: Free with in-app purchases
- Rating: 5.00/5 from 2 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 42 MB
- Languages: Australian English, Arabic, Bangla, Catalan, Croatian, Czech, Danish, Dutch, Finnish, French (France) and 34 more
- Released: 2026-02-20
- Data updated: 2026-08-20
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/ring-sizer-ai-size-finder/id6758885711/reviews.md

## What is Ring Sizer AI?

Stop guessing. Get the perfect fit with Ring Sizer AI, the most accurate measurement tool on the App Store.

Why we are No.1?
Unlike other apps, we provide Industry-First PPI Calibration. By calibrating your screen with a physical object, we ensure 100% millimetric precision that matches the real world.

Key Features:

AI Smart Scan: No ring? No problem. Place your finger next to any common object (coin, card, or lighter) and let Gemini AI calculate your size instantly.

Professional Ruler: Use our Liquid Glass ruler for rings you already own. Calibrated background grids provide absolute confidence.

Master Converter: Completely FREE access to 50+ regional standards (US, UK, EU, JP, CN, HK, and ISO).

Digital Jewelry Box: Save measurements for your loved ones in elegant Bento-style profiles.

AI Stylist: Receive professional ring style recommendations based on your unique finger shape.

Precision Guaranteed:

100% Calibrated Accuracy.

Privacy First: Photos are processed in real-time and never stored.

Trusted by 100,000+ users.

Note: Manual measurement results require a subscription to unlock.

Terms: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy: https://legal.rkvpxdr.com/privacy.html

## Key features

- AI Smart Scan for finger size
- PPI calibrated screen measurement
- Professional liquid glass ruler
- 50+ regional size standards converter
- Digital jewelry box for saved sizes
- AI stylist for ring recommendations

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Pro (Weekly) | $4.99 | per 7 days |
| Pro (Annually) | $29.99 | per year |


## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/ring-sizer-ai-size-finder/id6758885711/reviews.md

### 5/5 — Lifesaver!

*2026-02-27*

Needed to find my ring size for an online order and this worked perfectly. So much easier than going to a jewelry store. 5 stars!

## Frequently asked questions about Ring Sizer AI

### How does Ring Sizer AI ensure accurate measurements?

Ring Sizer AI uses industry-first PPI calibration to ensure 100% millimetric precision. It calibrates your screen with a physical object, matching real-world measurements.

### Can Ring Sizer AI measure my finger size if I don't have a ring?

Yes, the AI Smart Scan feature allows you to place your finger next to common objects like a coin, card, or lighter, and the AI will calculate your size instantly.

### Does Ring Sizer AI have ads?

Yes, Ring Sizer AI contains advertisements.

### What ring size standards does Ring Sizer AI support?

Ring Sizer AI offers free access to over 50 regional standards, including US, UK, EU, JP, CN, HK, and ISO.

### Is my data safe with Ring Sizer AI?

Yes, privacy is a priority. Photos are processed in real-time and never stored, ensuring your measurements remain confidential.

### What features require a subscription in Ring Sizer AI?

Manual measurement results require a subscription to unlock. Other features like AI Smart Scan and the size converter are available without a subscription.

### What devices is Ring Sizer AI available on?

Ring Sizer AI is available on iPhone and iPod devices.

### How often is Ring Sizer AI updated?

The latest version, 1.0.2, was released on March 20, 2026, indicating recent updates and ongoing development.

## Version history (last 5 releases)

### 1.0.4 — 2026-08-19

Improved AI ring sizing reliability and scan handling. This update also includes backend security upgrades and stability improvements.

### 1.0.3 — 2026-07-07

Improved AI ring sizing reliability and scan handling. This update also includes backend security upgrades and stability improvements.

### 1.0.2 — 2026-03-20

Bug fixes and performance improvements to make your experience even better.

### 1.0.1 — 2026-02-23

Bug fixes and performance improvements to make your experience even better.

### 1.0.0 — 2026-02-20

No release notes.

## Apps similar to Ring Sizer AI

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Ring Sizer: AR Ruler & Table](https://appshunter.io/ios/app/ring-sizer-ar-ruler-and-table/id6473256428) | 4.6 (51) | Free | Utilities |
| [Ring Sizer – Size Measurement](https://appshunter.io/ios/app/ring-sizer-size-measurement/id6467196564) | 4.9 (33) | Free | Utilities |
| [Ring Sizer — Size Measure App](https://appshunter.io/ios/app/ring-sizer-size-measure-app/id1644578569) | 4.4 (73) | Free | Utilities |
| [Ring Sizer Tool](https://appshunter.io/ios/app/ring-sizer-tool/id6466219535) | 4.8 (556) | Free | Utilities |
| [Ring Sizer: Sizerly](https://appshunter.io/ios/app/ring-sizer-sizerly/id6746245798) | 3.3 (3) | Free | Utilities |
| [Ring Sizer - Size Finder App](https://appshunter.io/ios/app/ring-sizer-size-finder-app/id6476069489) | 2.3 (6) | Free | Utilities |

## More apps by 嵩 张

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All apps by 嵩 张: https://appshunter.io/developer/1864792206

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-20.*