Honestly, most of their data outside of Czechia is just OpenStreetMaps, so you could use many other apps that are actually opensource: OsmAnd, Organic Maps, etc.
The thing for me about mapy is not that they have fantastic database but layout of their maps - it’s one of a few easily readable maps out there and unfortunately, especially for biking/trekking. I’ve tried alternatives but they’re miserable most of the time.
Honestly, most of their data outside of Czechia is just OpenStreetMaps, so you could use many other apps that are actually opensource: OsmAnd, Organic Maps, etc.
The thing for me about mapy is not that they have fantastic database but layout of their maps - it’s one of a few easily readable maps out there and unfortunately, especially for biking/trekking. I’ve tried alternatives but they’re miserable most of the time.