Opti Clinometer app icon
Native iPhone app Opti Clinometer

Measure the slope in front of you.

Turn your iPhone into a focused field clinometer for cycling climbs, trail scouting, and outdoor measurements. Aim with the camera or sight mode, then tap once to save the reading.

Saved Opti Clinometer measurements in a list
Opti Clinometer measuring a trail through the camera
A saved measurement with slope, angle, location, and note
Built for the field

A reading is more useful when you can return to it.

01

Two ways to aim

Use the live camera and crosshair, or switch to sight mode when the top edge of the phone gives you a clearer line.

02

Keep the context

Save slope percentage and angle together with a photo, location, date, and your own note.

03

Review it later

Browse measurements in a list or on a map, then export your records as a spreadsheet-friendly CSV.

Simple by design

Aim. Tap. Done.

  1. 1

    Point the camera or sight line at the slope.

  2. 2

    Read the percentage and angle in real time.

  3. 3

    Tap to freeze and save the measurement.

Available on iPhone

Take Opti Clinometer to the trail.

Download on theApp Store