Ruler - Screen Measure Tool
Precise cm & inch measurement
Free · Designed for iPad. Not verified for macOS.
No ruler? No problem! Turn your phone screen into a precise measuring tool. Touch, drag, and get real cm/inch measurements instantly.
Turn your smartphone screen into a precise ruler. Measure real lengths with a simple touch and drag.
【Key Features】
- Touch & drag to measure lengths instantly
- Switch between cm and inch units
- Real-time measurement display
- Automatic PPI detection for accurate results
【Precision Calibration】
- Credit card (85.6mm) calibration for pinpoint accuracy
- Saved calibration — set it once, measure anytime
- Optimized accuracy per device
【Easy-to-Use Design】
- Clean ruler interface with clear markings
- Dark mode support
- 10 languages supported
- Intuitive unit toggle
【Perfect For】
- Quick measurements when you don't have a ruler
- DIY, crafts, and sewing projects
- Furniture placement and space planning
- Students and professionals on the go
No need to carry a ruler — measure anything, anywhere with your phone!
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
- Improved device PPI auto-detection accuracy
- Enhanced dark mode UI
- Stability and performance improvements
The developer, mintaek lee, 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
- mintaek lee
- Size
- 23.9 MB
- Category
- Utilities
- Compatibility
Requires iOS 13.0 or later.
- iPhone
Requires iOS 13.0 or later. - iPad
Requires iPadOS 13.0 or later. - iPod touch
Requires iOS 13.0 or later. - Mac
Requires macOS 11.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2025 Oli