airspace.lv/drones is the web map of the Civil Aviation Agency of Latvia and the only legally binding source of UAS geographical-zone data in the country. For each zone the map shows its type, colour, altitude limits, active hours and the zone manager.
Manufacturer apps such as DJI use similar data, but they are not authoritative and can lag behind the current picture. If an app says "clear" while airspace.lv shows a restriction, airspace.lv wins — so check the zone there before every flight.