Trekarta is described as «is designed for hiking, cycling, geocaching, off-roading, boating and all other outdoor activities. It uses offline topo maps so you do not need to have internet connection. You can easily create places and share them to others» and is a Map service in the sport & health category. There are more than 25 alternatives to Trekarta for a variety of platforms, including iPhone, Android, iPad, Online / Web-based and Android Tablet. The best alternative is OsmAnd, which is both free and Open Source. Other great apps like Trekarta are Organic Maps, AllTrails, Komoot and Ride With GPS.Trekarta alternatives are mainly GPS Navigation Services but may also be Map Services. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of Trekarta.