On-Screen Ruler & Tape Measure

Place any object on your screen and measure it precisely in cm or inches. Calibrate once, measure forever.

Turn your iPhone into a precise on-screen ruler and digital tape measure. Set a small object on the screen and read its size in centimetres or inches — no camera, no internet, no clutter.

Measure everyday things in seconds: screws, coins, cables, keys, jewellery and anything that fits on your display. Calibrate once against a card or coin for reliable readings on any device.

WHAT YOU CAN DO • On-screen ruler in centimetres, inches and millimetres • Digital tape measure — drag two points to read any length • Protractor for angles and a bubble level for checking surfaces • Length unit converter plus a size reference for common objects • Save measurements to history and reuse them anytime

HOW IT WORKS

1. Calibrate the screen once against a real object
2. Choose your unit and place the item on the display
3. Read the size and tap save to keep it

Every measurement stays on your device. No accounts, no ads, no tracking — just a fast, focused measuring toolkit in your pocket.

Note: the on-screen ruler is calibrated per device and gives close, approximate readings, ideal for quick everyday sizing.

Full access unlocks with a subscription, offered weekly, yearly, or as a one-time lifetime purchase.

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