Ring Sizer vs testr
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ring Sizer
Accurately determine your ring size using your phone's screen or a built-in ruler. Supports multiple international sizing standards and allows saving measurements for future use. Ideal for online shoppers and jewelers.
- Measure ring size via diameter or circumference
- Supports US, UK, EU/ISO, AU, JP, CN, RU sizes
- Built-in screen ruler for finger measurement
- Save measurements for multiple users
- Ad-free experience
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Sizerly is a simple and precise tool for finding the right ring size using your phone. Whether you already have a ring to measure or need to find your finger size directly, Sizerly offers an intuitive way to get reliable sizing results in seconds. Just place a ring on your screen and adjust the sizing circle, or use the built-in ruler to measure your finger diameter. Sizerly supports all major international sizing standards, so you can shop confidently online or in-store. Key Features: - Measure ring size using diameter or circumference - Includes major size systems: US, UK, EU/ISO, AU, JP, CN, RU - Built-in screen ruler for measuring fingers - Save measurements for future use or multiple users Sizerly is ideal for online shoppers, gift buyers, and jewelers. It’s accurate, easy to use, and designed without ads for a smooth experience. Privacy Policy: https://di-apps-dev.web.app/privacy.html Terms of Use: https://di-apps-dev.web.app/terms.html
testr
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testr ist deine App um als Testperson an mobilen Nutzertests und Live-Interviews teilzunehmen. Als Mitglied bei testr kannst du die App ohne Login nutzen. Scanne einfach den QR code, der dir einem einem Nutzertest zur Verfügung gestellt wird und los geht es!
Screenshots
Verdict
The clearest difference is in-app purchases: testr at none against Ring Sizer's 2. testr also leads on device support (3 vs 1). Ring Sizer's advantage is update cadence (every 2 weeks vs every 2 months). On price, ads 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 sells 2 in-app purchases, starting at $3.99 per 7 days. testr asks for nothing beyond the download.
Ring Sizer ships an update every 2 weeks, testr every 2 months. The most recent releases landed on October 24, 2026 and October 31, 2026 respectively.
| Parameter | Ring Sizer | testr |
|---|---|---|
| Price | Free | Free |
| Rating | 3.3 (3 ratings) — better | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 2 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 10 MB | 33 MB |
| Age rating | 4+ | 17+ |
| Developer | Dziyana Dashynevich | Max Scheidlock |
In-app purchases
Ring Sizer
- Weekly Premium$3.997 Days
- Annual Premium$19.991 Year
testr
No in-app purchases
