I'm posting this as another message not to mess up with the quite extensive previous message.
proyectomapear.com.ar won't discuss anything about SP on Android because of many factors.
1) they make maps, Garmin compatible and they have been trying to get Garmin attention for a long time, but Garmin instead of helping was always developing new firmwares for GPSes that prevented Mapear and others to work correctly on their software. They may have fixed them already but from time to time that issue shows again (call it a regressive bug).