BandFit - Ring Sizer
Measure Ring Size on Screen
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
BandFit measures your ring size in seconds — no guesswork, no string-and-ruler tricks. Place an existing ring on your iPhone screen, align it with the calibrated circle, and read the exact size in any global standard.
KEY FEATURES
• Screen-calibrated ring guide (works on all iPhone models)
• Built-in ruler tool for measuring inner diameter
• Convert between US, UK, EU, and Japan ring size standards
• Save measurements for different fingers and people
• Inner diameter and circumference in millimeters
WHO IT'S FOR
• Buying a surprise gift ring
• Re-sizing an old ring
• Online jewelry shopping with confidence
• Comparing ring sizes between countries
• Jewelry makers and hobbyists
HOW TO USE
1. Place an existing ring on your iPhone screen
2. Adjust the slider until the orange circle matches the inner edge
3. Read your size in the standard you prefer
4. Use the ruler tool if you don't have a sample ring
PRIVACY
BandFit runs entirely offline. No camera, no microphone, no network. No data collection of any kind. Your measurements stay on your device.
SUBSCRIPTION INFO
• Payment will be charged to your Apple ID account at confirmation of purchase.
• Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period.
• Your account will be charged for renewal within 24 hours prior to the end of the current period.
• You can manage and cancel your subscriptions by going to App Store → Account → Subscriptions.
Privacy Policy: https://frexx.top/bandfit/privacy.html
Terms of Use: https://frexx.top/bandfit/terms.html
SUPPORT
475740640@qq.com
Ratings & Reviews
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Improves review readiness, localization, privacy details, and stability based on the latest validation pass.
The developer, 杰 向, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- 杰 向
- Size
- 633.9 KB
- Category
- Lifestyle
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English and Simplified Chinese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- BandFit Pro Yearly $29.99
- BandFit Pro Weekly $4.99
- Copyright
- © 2026 Clawbot