213+ iOS apps curated and reviewed
Ring Sizer by Jason Withers © is the household name in free ring sizing app, but it's far from the only option. We track 213+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 4.5★ (4.8K) | Yes | No | Jul 2026 |
| 2 |  | Free | 4.2★ (2.1K) | Yes | Yes | Jul 2026 |
| 3 |  | Free | 4.7★ (78) | No | Yes | Jul 2026 |
| 4 |  | Free | 4.8★ (556) | No | Yes | Jul 2026 |
| 5 |  | Free | 4.6★ (162) | No | Yes | Jul 2026 |
| 6 |  | Free | 4.6★ (54) | No | Yes | Jul 2026 |
| 7 |  | Free | 4.2★ (26) | Yes | Yes | Jul 2026 |
| 8 |  | Free was $0.99 | 4.8★ (460) | Yes | Yes | Jul 2026 |
Easily determine your ring size across multiple countries using metric or imperial units. Features visual guides and supports various international sizing standards. Share your size and explore a jewelry catalog.
This application helps you accurately measure ring and finger sizes without the need for physical tools. It offers a user-friendly interface and supports various measurement systems for precise results, making online jewelry shopping easier.
Easily determine your correct ring size using your smartphone's camera. This app provides accurate measurements for online jewelry purchases or custom designs, eliminating the need for resizing.
Accurately measure your finger size or compare existing rings to find the perfect fit. This tool simplifies ring sizing for confident online purchases and jewelry selection.
This app helps you accurately measure your ring size at home. It offers precise measurements in various units and international standards, eliminating guesswork for perfect-fitting jewelry. Ideal for online shoppers, gift-givers, and jewelers.
Easily determine your precise ring size using your iPhone's camera. Get measurements in various units and international standards, with helpful guides and sharing options.
Enhance your device's home screen and lock screen with customizable widgets, dynamic wallpapers, and interactive elements. Personalize your experience with unique themes and playful features like pet islands and mini-games.
Easily measure jewelry ring sizes using your phone's screen. Simply place your ring on the screen and adjust the slider to match its inner edge. The app provides accurate sizing in multiple international measurement systems.
Easily determine your ring size from the comfort of your home. This app eliminates the need for physical charts or store visits, providing quick and accurate sizing in minutes.
Easily determine your ring size using your phone's screen. Simply place a ring on the designated area and adjust the slider to match its inner edges. The app then displays your ring size in various international formats.
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.
Easily measure your ring size accurately from home using your phone. Supports multiple international sizing standards and offers helpful tips for jewelry care. Perfect for online shopping or buying gifts.
Accurately measure your ring size for any jewelry purchase. This app provides precise sizing guides, international compatibility, and allows you to save your measurements for easy reference. Get expert tips to enhance your jewelry shopping experience.
Easily determine your correct ring size for ordering class rings. This app works on any mobile device and for any finger, ensuring you can confidently select your style without worrying about size accuracy.
Measure your ring size accurately by placing a ring on your screen and adjusting a dot to match its inner diameter. Get your size in seconds without needing a physical sizer.
Easily track your menstrual cycles and ovulation dates. Get timely reminders for your next period and identify your most fertile days for conception. This app also serves as a personal journal to log symptoms, mood changes, and other important events.
Discover how to transform any US dollar bill into a wearable ring. This app provides step-by-step instructions with high-resolution photos and clear diagrams to guide you through the folding process. No additional materials are needed, just a bill and your hands.
Accurately measure ring sizes using your phone's screen. Determine diameter, circumference, and convert between international sizing systems. Ideal for jewelers and shoppers needing precise measurements.