Caliper&Ruler
Measure & Calibrate with Ease.
About
Transform your device into a precise digital caliper for measuring objects in inches and millimeters. Features intuitive drag-and-measure functionality and accurate screen calibration using common items.
What's New in Caliper&Ruler
2.1.0
August 11, 2026
• Added the Thanks feature, allowing you to support app development. • Improved calibration, making it easier to adjust the screen size using everyday objects such as credit cards, rulers, AA batteries, and CDs.
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$2.99
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FAQ
What is Caliper&Ruler?
Caliper&Ruler is a utility app that turns your iPhone or iPad into a digital caliper for precise on-screen measurements in inches and millimeters.
How accurate is Caliper&Ruler?
The app offers accurate measurements and includes calibration features using everyday objects like credit cards or rulers to ensure precision on your device's screen.
Does Caliper&Ruler have ads?
No, Caliper&Ruler is ad-free, providing an uninterrupted measurement experience for users.
What devices is Caliper&Ruler compatible with?
Caliper&Ruler is designed for iPhone (landscape only) and iPad (all orientations), offering universal compatibility for Apple users.
How do I calibrate Caliper&Ruler?
You can calibrate Caliper&Ruler using common objects with known lengths, such as credit cards, AA batteries, or CDs/DVDs/Blu-ray discs, for precise adjustment.
What measurement units does Caliper&Ruler support?
Caliper&Ruler allows you to easily measure objects in both inches and millimeters, providing flexibility for various needs.
When was Caliper&Ruler last updated?
The latest version, 2.1.0, was released on August 11, 2026, indicating recent development and support.
What is the age rating for Caliper&Ruler?
Caliper&Ruler has an age rating of 4+, making it suitable for a wide range of users.
