Clinometer: Slope & Tilt Meter

Clinometer is an inclinometer and angle meter for builders, roofers, woodworkers and DIY jobs. The live angle is on screen as soon as the app opens: set the phone on a rafter, ramp, deck, pipe or stair stringer and read degrees, percent grade and 1:N ratio together. ▶ MEASURE • Auto gauge — degrees, grade % and ratio, with a live x:12 pitch and mm-per-metre row underneath. • Roof pitch — rise over run (3:12, 6:12, 8:12…) matched to the nearest standard pitch. • Slope — grade % sorted into level, gentle, moderate, steep and severe, with references like the 1:12 ADA ramp limit. • Tilt — bubble display with a level indicator. • Works lying flat, standing on end or on the long edge. The app shows which one it detected; tap the chip if you need another. ▶ CHECK AGAINST A TARGET Choose ADA ramp, drainage (1–5%), driveway (≤15%), shingle roof (2:12–9:12) or stairs (30–35°). The badge reads PASS or OUT OF RANGE live, so you can shim, plane or re-cut until it passes. ▶ CONTROLS • Start / Stop — records min, max, elapsed time and a trend line; the reading is saved to History when you stop. • Hold — freezes the value for awkward spots. • Zero — set any trusted surface as 0°; kept after restart, long-press to clear. A manual offset is in Settings. • Optional buzz when you pass through 0°. ▶ LEVEL · VEHICLE · MITER • Two-axis bubble level with roll and pitch. • Vehicle mode for 4x4 and campers: roll and pitch gauges, zero on your parking spot, max tilt and an adjustable warning from 5° to 60°. • Miter & crown calculator: enter the wall corner and spring angle (38/45/52°) to get miter and bevel saw settings, or measure the corner with the phone against both walls. ▶ HISTORY & EXPORT Keep up to 500 readings with notes and stars, compare two of them, see 7-day averages, export CSV, log one point per second, or share a reading as an image. ▶ TIPS INSIDE The built-in guide covers roof pitch notation, ramp rules, the flip-and-average calibration trick and why 45° equals a 100% grade. Values are displayed to a tenth of a degree. Phone sensors differ and thick cases add error — zero on a known level surface for critical work.

When Clinometer+ Slope is opened for the first time after installing, it starts preparing the opening-screen ad without waiting for its online settings to download, so the Angle tab with its live reading appears with less waiting. If you close the app between measurements and open it again, full-screen ads still keep their set intervals. Measuring, calibration, History and settings are untouched.