Kerteriz — Advanced Compass

aripdcom

About this app

Kerteriz is a compass for Android that does one thing carefully.

TRUE NORTH, NOT MAGNETIC NORTH
Once your location is known the magnetic declination is applied, so north on
the dial is the geographic pole. Magnetic north stays on the rim as a blue M,
so you can see the difference for yourself.

BEARINGS TO FIXED PLACES
Great-circle bearings to fixed places, marked on the rim with the distance.
Worked out on the device: nothing is looked up, nothing is fetched.

LOCK A BEARING
Tap the dial to lock the direction you are facing. The bottom line then says
how far you have drifted, left or right, and a double tick tells you when you
are back on it.

SPIRIT LEVEL
A bubble in the middle of the dial. A tilted phone reads wrong — this is the
thing that tells you it is tilted.

SUN AND MOON
Their bearings on the rim, the arc from sunrise to sunset, and the moon drawn
with its phase, faint while it is below the horizon.

SAVED POINTS
Long-press the dial to save where you are, or paste coordinates or a shared
map link. The rim then carries the bearing and the distance back.

NAUTICAL MILES AND A STEADY HEADING
Distances in metres and kilometres, or metres and nautical miles. Bearings to
your own saved points can follow the great circle — the shortest way — or a
rhumb line, the single heading you can hold from start to finish. The distance
follows whichever you pick.

NIGHT MODE
Black background, red dial. Marks are told apart by hue rather than
brightness, so night vision survives a glance at the screen. It can switch by
itself at the end of civil twilight.

SAYS IT OUT LOUD
Every reading is announced to screen readers in the language of the phone, and
a short tick passes north, east, south and west, so a bearing can be held
without looking.

TWENTY-EIGHT LANGUAGES
Every official language of the European Union, plus Icelandic, both written
standards of Norwegian, and Turkish. The app opens in whatever language the
phone is set to.

SMALL, AND OFFLINE BY DESIGN
No frameworks, no dependencies, no advertising, no analytics. The app holds no
internet permission at all: Android will not give it a network connection, so
it cannot send your location anywhere. That is not a promise in a policy — you
can check it in ten seconds under Settings > Apps > Kerteriz > Permissions.

Location is used on the device for the declination, the bearings to fixed
places, and the positions of the sun and the moon. Nothing leaves the phone.

Source code: github.com/aripdcom/kerteriz
Privacy policy: kerteriz.aripd.com/privacy/

What’s new

First release on Google Play.

A compass that shows true north, bearings and distances to eleven fixed places, and the sun and the moon on the dial. Distances in kilometres or nautical miles; bearings by great circle or rhumb line.

No ads, no tracking, no internet permission.