Clinometer

Set it down. Read the slope.

Get it onGoogle PlayComing soonApp Store

Free to download.

Check the inclination of panels, roofs, ramps and other surfaces with Edge, Back and Level views. Read slope in the unit you work with, set a relative reference, hold a result and keep notes in Records. The app also brings together field and construction tools, with clear tier labels on optional extras. The free app and paid Clinometer Pro share the field-tool family. Pro provides permanent Pro access and no ads; optional extras in the free app keep their tier labels.

See what you can do.

Explore the screens, then follow the guide to try them yourself.

Clinometer edge dial with an inclination reading — Clinometer · Pro-tier emulator capture, 23 October 2026

The shared off-road inclinometer with roll and pitch gauges — Off-road inclinometer · shared tool preview in Toolbox, 23 October 2026

The shared Strike and dip tool with geological orientation readings — Strike and dip · shared tool preview in Toolbox, 23 October 2026

Put it to work.

Practical ways to use Clinometer.

Check a panel or roof slope

Lay the phone on its back and read the grade, ratio or pitch in the unit you need.

Level a surface

Use Level to see front-to-back and side-to-side tilt together, then Hold before lifting the phone.

Review a field setup

Keep named readings and notes; optional zones, references and Pro interval logs help compare or track a setup.

Your first few minutes.

Start with a useful task, then keep the result.

Read every step ›

Choose the placement
Stand the phone on its edge, lay it on its back, or choose Level for two-direction tilt.
Set and read the reference
Check a known reference, calibrate the side you use and wait for the reading to settle.
Save useful context
Hold, save with a title and note, then reopen the result in Records.

Learn by trying.

Open ⋮ › Tour & lessons in the meter for Tour, Showroom, Lessons and Tips. The calibration story is a scripted preview; it changes no saved calibration. Free and Pro use this same learning workflow.

Open the guided walkthrough ›

Practice 1

Start with a known reference

Use a known level surface to set the reference for the phone’s sensors. Place the phone on a known level surface, keep it still, then open Calibrate and tap Calibrate to set it to 0°. Each zero mark on Edge keeps its own calibration.

Practice 2

Stairs, rails and ladders

Rest the phone’s long side on the edge. Zones color the dial for the job: with Stairs & ladders, green is a standard stair.

Practice 3

Slopes in percent

Lay the phone on its back, top edge uphill. The display gives the grade, the ratio and the pitch together; the unit button picks the big number.

Small tips. Better results.

Useful habits for your next task.

All tips in the guide ›

Point the top edge uphill: When using Back on a slope, lay the phone on its back with its top edge uphill. The side view helps show how it is sitting.

Use percent for a grade: Change the unit to percent, ratio or pitch when that matches your plan. This avoids treating a degree reading as a percentage.

Calibrate from a known reference: Keep the phone still on a known level surface. On Edge, choose the zero mark for the side you are using first; each side stores its own reference.

Check both directions: Use Level for shelves, tables and similar surfaces. The bubble moves toward the high side; hold the reading before lifting the phone.

Measure from an existing part: Choose Relative angle and Set reference on the first surface. Other surfaces then read from that reference, so parallel parts read zero.

Keep the reading with a note: Use Save with details to name the site or part. The saved message opens the record so you can check it immediately.