Ring Sizer: Measure Ring Size

PlusInfoLab

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About this app

Ring Sizer helps you find your exact ring size from home with professional-grade accuracy. Whether you are shopping for an engagement ring, a wedding band, or a surprise gift, Ring Sizer provides the tools you need to measure with confidence.

Unlike standard apps, Ring Sizer includes a precise calibration step using a credit card or a physical ruler. This ensures your measurements are tailored specifically to your phone's screen, providing millimetric precision every time.

📏 TWO WAYS TO MEASURE
• Measure Finger — Place your finger on the screen and adjust the circle to match
• Match a Ring — Place an existing ring on the screen and find its exact size

📊 ALL SIZE STANDARDS
Instantly convert between major size systems:
• United States (US)
• United Kingdom (UK)
• Europe (EU)
• India & Australia
• Diameter and Circumference (mm)

🎯 CALIBRATION = ACCURACY
Most ring sizer apps give inaccurate results because every device screen is different. Our calibration tool solves this. Use a standard credit card or a ruler to calibrate once and trust every result thereafter.

📋 KEY FEATURES
• Professional Precision — Results match ISO standards used by professional jewelers
• Measurement History — Save and name your measurements for future reference
• Haptic Feedback — Feel a subtle vibration as you adjust the sizer for precision
• Premium Design — Clean interface optimized for Light and Dark modes
• Privacy First — Works 100% offline. No camera or account required
• 100% Free — All features are accessible without ads during measurement

💍 PERFECT FOR
• Online jewelry shopping and surprise gifts
• Checking your size before visiting a jeweler
• Managing sizes for the whole family in one place
• Finding bangle and bracelet sizes

🔐 YOUR DATA IS SAFE
All measurements and saved sizes are stored securely on your device. No account needed, no tracking, and no data collection. Your privacy is our priority.

📲 DOWNLOAD NOW & MEASURE WITH CONFIDENCE
Stop guessing and avoid the hassle of returning ill-fitting rings. Ring Sizer gives you the exact size you need in seconds. Download now and find your perfect fit!

Questions or feedback? We'd love to hear from you!
[e-mail]

Made with ❤️ for Couples, Shoppers & Jewelry Lovers

What’s new

VERSION 1.0.0 (INITIAL RELEASE)

• Precise screen calibration using credit card or ruler.
• Two measurement modes: Measure Finger & Match a Ring.
• Support for US, UK, EU, India, and Australia standards.
• Save and name your measurements for easy reference.
• Works 100% offline with total privacy.