Fundus Link vs Ring Sizer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Fundus Link
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The mobile application can help to have better view and capture the retina image, well organization the image records as left and right eyes indication, and well organize the storage of retina image records.
Ring Sizer
Instantly determine your precise ring size for online shopping, custom orders, or gift purchases. Offers multiple international sizing standards and saves your measurements for future use. Get accurate results with clear, step-by-step instructions.
- Instant ring size measurement
- Support for multiple international sizing standards
- Save and access size history
- Step-by-step measurement guidance
- Measure for custom ring widths
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Ring Sizer: Find Your Perfect Ring Size Find your perfect ring size instantly with Ring Sizer. Whether you're shopping for an engagement ring, ordering a wedding band online, or checking your size for custom jewelry, get accurate measurements in seconds. Perfect for: - Engagement ring shopping online - Wedding band sizing at home - Jewelry gift purchases - Custom ring orders - Online shopping preparation Key Features: - Instant Measurement: Get your ring size in seconds with easy-to-use tools - Multiple Standards: Supports US, UK, EU, and international sizing systems - Size History: Save and access your measurements for future reference - Step-by-Step Guidance: Clear instructions ensure accurate results - Custom Width Support: Measure for different ring styles and widths Never guess your ring size again. Download Ring Sizer and shop with confidence. Some features may require an in-app purchase. Need help? Contact us at support@reku.dev Privacy Policy: https://myringsizer.app/privacy.html Terms & Conditions: https://myringsizer.app/terms.html
Screenshots
Verdict
The clearest difference is in-app purchases: Fundus Link at none against Ring Sizer's 3. Fundus Link also leads on update cadence (every 9 days vs every 3 weeks) and iOS requirement (15.0 vs 17.0). On price, ads and device support 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 3 in-app purchases, starting at $3.99 per 7 days. Fundus Link asks for nothing beyond the download.
Fundus Link ships an update every 9 days, Ring Sizer every 3 weeks. The most recent releases landed on September 29, 2026 and October 8, 2026 respectively.
| Parameter | Fundus Link | Ring Sizer |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.8 (35 ratings) — better |
| Positive reviews | — | 71.4% of reviews |
| Number of ratings | — | 35 — better |
| Update frequency | Every 9 days — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 11 MB | 29 MB |
| Age rating | 4+ | 4+ |
| Developer | RainsOptics Limited | Ramkumar Vellaisamy |
In-app purchases
Fundus Link
No in-app purchases
Ring Sizer
- Ring Sizer Weekly$3.997 Days
- Ring Sizer Yearly$9.991 Year
- Ring Sizer Lifetime$19.99
Questions
Is Fundus Link free?
Is Ring Sizer free?
Do Fundus Link or Ring Sizer have ads?
Which is updated more often, Fundus Link or Ring Sizer?
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