Ruler: Tape Measure & Level
Distance, Area, Angle & Height
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Eleven measuring tools in one app. Point the camera for distance, height, area, angle and volume — plus a screen ruler, level, protractor, compass and converter.
Turn your iPhone into a complete measuring kit. AR Ruler uses the camera and Apple's ARKit to measure real objects and spaces, and adds five sensor tools that work without AR.
MEASURE WITH THE CAMERA
• Distance — tap two points, get the exact length
• Multi-line & perimeter — chain as many points as you need
• Height — measure a person or object from the floor up
• Area — outline any surface and read its size
• Volume — box out an object and get its cubic size
• Angle — measure corners and slopes in degrees
TOOLS THAT WORK ANYWHERE
• On-screen ruler — real-size, in centimetres or inches, with credit-card calibration for perfect accuracy on any device
• Bubble level — two-axis, with a calibration offset so your case doesn't throw it off
• Protractor — read any tilt or slope, with a freeze button for awkward spots
• Compass — true north heading
• Unit converter — length, area and volume, fully offline
BUILT FOR ACCURACY
Every measurement shows a confidence indicator. When the light is low, the surface has no texture, you're moving too fast, or the target is too far away, the app tells you — and tells you what to do about it. Most measuring apps quietly hand you a wrong number instead.
On iPhones with LiDAR, depth data is used automatically for even better precision.
METRIC AND IMPERIAL
Switch instantly between millimetres, centimetres and metres, or feet and fractional inches down to sixteenths.
NO ACCOUNT, NO TRACKING
No sign-up, no analytics, no data collection. Measurements stay on your device.
AR features require an ARKit-compatible iPhone. The screen ruler, level, protractor, compass and converter work on any supported device.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, RANA RESIDOGLU, 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 Linked to You
The following data may be collected and linked to your identity:
- Purchases
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Location
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- RANA RESIDOGLU
- Size
- 17.9 MB
- Category
- Utilities
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 43 more
- English, Arabic, Bengali, Catalan, Croatian, Czech, Danish, Dutch, Finnish, French, German, Greek, Gujarati, Hebrew, Hindi, Hungarian, Indonesian, Italian, Japanese, Kannada, Korean, Malay, Malayalam, Marathi, Norwegian Bokmål, Oriya, Polish, Portuguese, Punjabi, Romanian, Russian, Simplified Chinese, Slovak, Slovenian, Spanish, Swedish, Tamil, Telugu, Thai, Traditional Chinese, Turkish, Ukrainian, Urdu, Vietnamese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- AR Ruler Pro (Yearly) $29.99
- AR Ruler Pro (Monthly) $5.99
- AR Ruler Pro (Weekly) $1.99
- Copyright
- © 2026 AR Ruler Ran Studio