Navigation

Finder
Remote mobile phone searching via SMS requests.

Speedometer
Display your current speed as notification

Transportr - Open Source Public Transit
Public Transport Companion

KaffeePott
KaffeePott makes it easy for you to find cafés.

AAT Another Activity Tracker
AAT is a GPS-tracking application for tracking sportive activities, with emphasi

Freifunk-Karte
Map for viewing the Freifunk Nodes on a OpenStreetMap

PhoneTrack
Log positions to Nextcloud PhoneTrack app or any custom server

CycleStreets journey planner
UK-wide cycle journey planner - cycle navigation for cyclists, by cyclists.

OpenWLANMap
Help create a WiFi coverage map

Acastus-Photon
An online address/POI search for navigation apps

Hauk
Self-hosted real-time location sharing

BRouter
Get elevation-aware cycling directions

Seguime
Follow where your device goes without being followed by you

SatPredict
An offline satellite tracking app

DisasterRadio

Metrodroid
Metrodroid can read information from some public transport NFC smartcards

KTrip
Public Transport Assistant

Haltestellenanzeige (Display Monitor)
Displays the departure times of all stops in Germany (Display Monitor).

c3nav
Indoor navigation for the Chaos Communication Congress

GPSd Forwarder
Service to forward NMEA messages to a GPSd server

My Position
Share your location
Travel Mate
A complete travel guide

OSMTracker
GPS Track Recorder

Private Location
Keep your phone location private

Tiny Travel Tracker
Secure long term GPS tracker and log

Déjà Vu - A local RF based back end for the µg Pro
Mobile/cell and WLAN/Wi-Fi based network provider for UnifiedNlp and microG

CityZen
City navigation app
PanicTrigger
Helps you and others in case of an emergency

NextCompanion
Rogue client for nextbike (unofficial)

BART Runner
Timetables for trains in the U.S.