Apps like GUIBO the digital guidebook

Here are some great alternatives to GUIBO the digital guidebook by Schneider Geo GmbH :
ModernHiker: California Hiking
ModernHiker: California Hiking
★4.3
Hiking Project
Hiking Project
★3.7
Russian Topo Maps Pro
Russian Topo Maps Pro
★4.9
OsmAnd — Maps & GPS Offline
OsmAnd — Maps & GPS Offline
★4.4
Trailblazer Navigator Pro
Trailblazer Navigator Pro
★4.2
Topo GPS
Topo GPS
★4.2
bergfex: hiking & tracking
bergfex: hiking & tracking
★4.1
OsmAnd+ — Maps & GPS Offline
OsmAnd+ — Maps & GPS Offline
★4.4
PathAway Outdoor GPS Navigator
PathAway Outdoor GPS Navigator
★4.0
MTB Project
MTB Project
★4.2
onX Backcountry Trail Maps GPS
onX Backcountry Trail Maps GPS
★4.4
Israel Hiking Map
Israel Hiking Map
★4.8
RealityMaps: ski, hike, bike
RealityMaps: ski, hike, bike
★3.3
E-walk - Hiking offline GPS
E-walk - Hiking offline GPS
★3.4
ape@map - Hiking Navigation
ape@map - Hiking Navigation
★5.0
Rother: Hiking & Maps
Rother: Hiking & Maps
★4.7