Tape Measure

Yes, Tape Measure is free to download and use, with no account or sign up. The core measuring tools are free. Certain advanced or specific features may be offered as an optional Premium in-app subscription, but all core tools remain free. See our Terms of Use for subscription details.

Tape Measure includes an AR ruler, spirit level, area calculator, height measurement, 3D measurement, angle finder, TV sizer, and more — all powered by augmented reality through your iPhone camera.

Tape Measure uses Apple's ARKit to estimate dimensions. Accuracy depends on lighting, surface texture, distance to the object, and how steady you hold your iPhone. For everyday tasks like sizing furniture, hanging a picture, or measuring a room, it works well. For precision, professional, legal, or safety-critical measurements, please use a physical measuring tool.

Tape Measure requires an iPhone that supports ARKit. Most modern iPhones from iPhone 6s and later support AR. Devices with a LiDAR scanner (iPhone 12 Pro and later Pro models) deliver the best precision and faster scanning.

No manual calibration is needed. To get the best results, move your phone slowly so ARKit can map the scene, point at a textured, well-lit surface, and stay roughly arm's length from the object.

AR works best in bright, even lighting on textured surfaces. In dim light or on plain reflective surfaces, ARKit may struggle to track the scene and accuracy will drop. Devices with LiDAR perform much better in low light.

The core AR measuring tools work offline using your device's camera and ARKit. An internet connection is used in the background to send anonymous attribution and analytics events to our service providers, but this does not affect measuring.

We do not collect your name, email, contacts, photos, audio, location, or any measurement data you capture. We do collect a limited amount of anonymous data through AppsFlyer (attribution and product analytics) and Google Ads (advertising measurement) — including device model, OS version, and app events. The Apple advertising identifier (IDFA) is collected only if you grant permission via Apple's ATT prompt. None of this is linked to your identity. See our Privacy Policy for full details.