Ultrahuman Ring Sizer vs Ring Sizer AI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ultrahuman Ring Sizer
Instantly determine your ring size by taking a photo of your hand. The app uses advanced AI vision algorithms to accurately calculate your perfect fit, requiring only a standard-sized card in the frame for reference.
- Instant ring size calculation
- AI-powered vision algorithm
- Photo-based measurement
- Requires standard card for reference
- Accurate fit determination
Read full descriptionHide full description
Ultrahuman Ring Sizer is an app that lets you instantly find out your Ultrahuman Ring Size. All you need to do is click a picture of your hand with a standard sized card in the frame and our State-Of-The-Art Vision algorithm will calculate the perfect Ring size for you.
Ring Sizer AI
Accurately measure your ring size using your phone's camera. Features AI-powered scanning, a professional ruler, and a comprehensive size converter. Save measurements and get personalized style recommendations.
- 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
Read full descriptionHide full description
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
Screenshots
Verdict
The clearest difference is review sentiment: Ring Sizer AI at 100% against Ultrahuman Ring Sizer's 18%. Ring Sizer AI also leads on rating (5.0 vs 2.0). Ultrahuman Ring Sizer's advantage is in-app purchases (none vs 2) and ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Ring Sizer AI sells 2 in-app purchases, starting at $4.99 per 7 days. Ultrahuman Ring Sizer asks for nothing beyond the download.
Ring Sizer AI holds the better App Store score, 5.0 against 2.0. That said, the two scores are not equally well evidenced: Ultrahuman Ring Sizer has 24 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 18% of Ultrahuman Ring Sizer's written reviews are positive against 100% of Ring Sizer AI's.
Ultrahuman Ring Sizer ships an update monthly, Ring Sizer AI every 5 weeks. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.
| Parameter | Ultrahuman Ring Sizer | Ring Sizer AI |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (24 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 17.6% of reviews | 100.0% of reviews — better |
| Number of ratings | 24 — better | 3 |
| Update frequency | Monthly — better | Every 5 weeks |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 16.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 45 MB | 42 MB |
| Age rating | 4+ | 4+ |
| Developer | ULTRAHUMAN HEALTHCARE PRIVATE LIMITED | Tianjin Illuso Information Technology Co., Ltd. |
Customer experience
Ultrahuman Ring Sizer
Ring Sizer AI
In-app purchases
Ultrahuman Ring Sizer
No in-app purchases
Ring Sizer AI
- Pro (Weekly)3 Days trial$4.997 Days
- Pro (Annually)$29.991 Year
Questions
Is Ultrahuman Ring Sizer free?
Is Ring Sizer AI free?
Which has better reviews, Ultrahuman Ring Sizer or Ring Sizer AI?
Do Ultrahuman Ring Sizer or Ring Sizer AI have ads?
Which is updated more often, Ultrahuman Ring Sizer or Ring Sizer AI?
Other comparisons
