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About Pocket Ruler
Check and compare common sizes offline.
Pocket Ruler is an offline size reference app for checking and comparing common dimensions. Look up everyday objects, paper formats, screen sizes, photos, and luggage-style references, switch between cm, mm, and inches, and view comparison cards with dimensions and ratios.
The app works without an account, camera, files, internet, location, microphone, contacts, SMS, calendar, or broad storage permissions. It is a reference tool for comparing known dimensions, not a camera-based measuring tool.
What's new in the latest
Last updated on May 29, 2026
Minor bug fixes and improvements. Install or update to the newest version to check it out!
Videos and Screenshots
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