JustRuler - 実寸定規

About this app

JustRuler turns your iPhone screen into a real-size ruler. When you forgot your tape measure but need a quick check on length, angle, or level, this is the one tool to keep handy. [Key features] - Real-size ruler mode — Place an object on the screen and read the scale. Toggle cm/inch instantly. - Two-line measure mode — Pinch an object between the on-screen lines and read the gap to the millimeter. - Protractor (0°–180°) — Drag the on-screen arm to measure angles. Great for DIY and furniture assembly. - Spirit level — Lay the device flat and the bubble centers. Hold it vertical for a bar-style level. - Calibration — Match your real ruler once and every measurement becomes more accurate. - 5 styles — Classic / Modern / Dark / Metal / Custom Color. [New in v2.1] - Sequential measurement: stack multiple segments and read the running total - Reference mode: set a target value and see the live diff against it - Voice readout: hear values spoken aloud when your hands are full - 31 languages supported [Who it's for] - DIY and craft enthusiasts - Anyone who doesn't want to carry a ruler around - Students, designers, makers Free with one launch interstitial ad. A one-time $0.99 purchase removes ads forever. Privacy Policy: https://kazusa703.github.io/privacy.html Terms of Use: https://kazusa703.github.io/terms.html Support: https://kazusa703.github.io/support.html

v2.1 update [New] - Sequential measure mode: add segments and read the total. - Reference mode: set a target via history or input; live diff with haptic + voice when matched. - Voice readout: speaks values as you drag and save, in your language. - 31 languages supported (was Japanese only). [Other] - Internal optimization and bug fixes. Please let us know what you think via Support.

Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.

1. First observed Aug 15, 2026 · 1:36 PM Free