PerfectFit® vs Size rings
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PerfectFit®
Measure your ring size accurately for any finger with this app. It offers a seamless solution to avoid manual fittings and solves sizing issues for online jewelry shopping. Get precise measurements down to 1/8 sizes and easy international conversions.
- Accurate ring size measurement
- Measures any finger
- Precision to 1/8 sizes
- International size conversion
- E-commerce integration
- Customizable appearance
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The ring size measuring app that gives you an accurate ring size for any finger in just a few clicks. Our patent-pending technology provides a seamless solution that takes away the need for a manual fitting, solving the sizing issue for any jewelry e-tailer. - Accuracy down to 1/8 sizes for any finger - Easy conversion to international sizing - Seamless integration with e-commerce sites - No more sending out sizers - Available to be custom skinned
Size rings
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Introducing Size Rings: Your Personal Jeweler in Your Pocket Imagine having the precision of a master jeweler at your fingertips. Gone are the days of guessing ring sizes or awkwardly trying to measure your loved one’s finger without ruining the surprise. With Size Rings, you can: Place a real ring on the screen and in the app, use the slider to resize the image to the actual ring size, and then save the image size to your device. Create your size library: Save multiple ring sizes for yourself and your loved ones. Whether it’s an engagement ring, a gift for your partner, or a treat for yourself, you’ll always have the right size at your fingertips. Access anywhere, anytime: Saved sizes are securely stored and easily accessible at any time. When shopping in a brick-and-mortar store, you can show an image of the smallest ring size you need. Size Rings isn’t just an app; it’s peace of mind. It’s the confidence that you’ll buy the perfect piece of jewelry without the hassle of returns or resizing. It’s an opportunity to surprise your significant other with a ring that fits like it was made for them – because with Size Rings, it almost is. Whether you’re a jewelry lover, a romantic planning the perfect proposal, or just a connoisseur of the perfect fit, Size Rings is your secret weapon in the world of rings. Download Size Rings today and turn your phone into a professional ring sizer. Because when it comes to expressing love and style, every millimeter counts. Ring sizes: precision at your fingertips, perfection on your hand.
Screenshots
Verdict
The clearest difference is ads: PerfectFit® at none against Size rings's shown. Size rings's advantage is update cadence (every 2 weeks vs every 6 months) and iOS requirement (16.0 vs 18.0). On price, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
PerfectFit® ships an update every 6 months, Size rings every 2 weeks. The most recent releases landed on October 24, 2026 and October 21, 2026 respectively.
| Parameter | PerfectFit® | Size rings |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 6 months | Every 2 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 18.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 26 MB | 46 MB |
| Age rating | 4+ | 17+ |
| Developer | Radius Technologies | Ewgeniy Isurov |
In-app purchases
PerfectFit®
No in-app purchases
Size rings
No in-app purchases
Questions
Is PerfectFit® free?
Is Size rings free?
Do PerfectFit® or Size rings have ads?
Which is updated more often, PerfectFit® or Size rings?
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