SpanwickA tape measure that tells you how far off it may be
Spanwick measures with your Android phone’s camera and prints, beside every reading, how far off that reading may be — so you know when to trust it and when to reach for a real tape.
- MeasureAim at one end, tap, aim at the other end, tap. A height starts on the floor; an area takes its corners.
- Read the likely errorEach reading comes with its own margin, “about ± …”, worked out from how it was measured. It is wider from far away, where the camera is unsure of the depth, on a wall, and when the phone moved a long way between the taps.
- Keep a roomSave readings to a room. Typed a length from a real tape? The room takes yours and says which numbers came from where.
Also in the app
A bubble level you can calibrate on your own table. A photo measure for phones without the camera tape: put a sheet of paper or a bank card in the picture for scale. Lengths in feet and inches or metric, your pick.
Honest about what it is
A phone is not a tape. Spanwick never hides that: when a reading may be off by more than you can live with, it says so in plain words. Before you cut, drill or order something, measure it with a real tape.
Spanwick is for Android phones, on Google Play.
Spanwick is not affiliated with Google. Android, Google Play and the Google Play logo are trademarks of Google LLC.