Check it out...
f-droid.org
It's a "survival/trekking" tool, but the latest update includes a clinometer, so it can be used as a ghetto pocket transit. Combined with a tape, it'll allow you to easily measure tree heights. It has some other tools that may be of interest also. Depends on what you want to do.
Trail Sense | F-Droid - Free and Open Source Android App Repository
Use your phone's sensors to assist with wilderness treks
f-droid.org
It's a "survival/trekking" tool, but the latest update includes a clinometer, so it can be used as a ghetto pocket transit. Combined with a tape, it'll allow you to easily measure tree heights. It has some other tools that may be of interest also. Depends on what you want to do.
