Tamarin.app vs Ring Sizer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Tamarin.app
Read full descriptionHide full description
Indispensable for all sellers on Amazon Marketplaces. All important information is available at a glance. Amazon fees, cost of goods sold, advertising... Get a complete and accurate profit estimate. Make the most of your data. We'll teach you a thing or two about your customers ;)
Ring Sizer
Read full descriptionHide full description
Ring Sizer : Finger Size helps you estimate ring and finger sizes using simple measurement tools and size reference guides. Check finger measurements, compare sizing standards, and find the right ring size with an intuitive interface. Browse size charts, convert between common ring sizing systems, and save measurements for future reference. The app is designed to make ring sizing quick, convenient, and easy to understand. Whether you're buying a ring, planning a gift, or checking your own size, Measure Ring & Finger Size provides a practical way to estimate ring measurements from your device. To find out more about automatic subscription renewals: - Ad-free version - measure your ring unlimited Premium Subscription: MeasureRing One Week - 4.99 USD MeasureRing One Year - 19.99 USD Your payment will be charged to your iTunes Account. The app is offering auto-renewable subscriptions. For More Information: Privacy Policy : http://mastertexfab.com/pages/Privacy%20Policy.html Terms of Use : http://mastertexfab.com/pages/Terms%20Of%20Use.html
Screenshots
Verdict
The clearest difference is ads: Tamarin.app at none against Ring Sizer's shown. Tamarin.app also leads on device support (3 vs 1) and iOS requirement (14.2 vs 16.6). Ring Sizer's advantage is update cadence (fortnightly vs monthly). On price and in-app purchases 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. Tamarin.app sells 1 one-off in-app purchase and Ring Sizer sells 2 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.
Tamarin.app ships an update monthly, Ring Sizer fortnightly. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.
| Parameter | Tamarin.app | Ring Sizer |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly | Fortnightly — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 14.2 — better | 16.6 |
| Further details — not scored | ||
| Size | 75 MB | 62 MB |
| Age rating | 4+ | 4+ |
| Developer | Sudelli | Mastertex Fab |
In-app purchases
Tamarin.app
- 1 month subscription$17.99
Ring Sizer
- MeasureRing One Week$4.997 Days
- MeasureRing One Year$19.991 Year
Questions
Is Tamarin.app free?
Is Ring Sizer free?
Do Tamarin.app or Ring Sizer have ads?
Which is updated more often, Tamarin.app or Ring Sizer?
Other comparisons
