Apps like Smart Mineralogist

Here are some great alternatives to Smart Mineralogist by Yakobo :
Handbook of Mineralogy
Handbook of Mineralogy
★3.9
Virtual Microscope - Minerals
Virtual Microscope - Minerals
★4.3
Atlas of 3D Rocks and Minerals
Atlas of 3D Rocks and Minerals
★4.3
Minerals catalogue A-Z
Minerals catalogue A-Z
★4.4
Geology Toolkit Lite
Geology Toolkit Lite
★4.3
Geology Toolkit Premium
Geology Toolkit Premium
★4.5
Rock: Identifier & Stone ID
Rock: Identifier & Stone ID
★4.3
Mine Locator Map
Mine Locator Map
★4.4
Minerals guide
Minerals guide
★4.3
Rock identifier: Stone Scanner
Rock identifier: Stone Scanner
★3.5
Crystal Guide® Pocket Edition
Crystal Guide® Pocket Edition
★4.6
Rocks & Minerals Book
Rocks & Minerals Book
★4.3
Minerals
Minerals
★4.4
Mine Knights!
Mine Knights!
★4.4
MCPE Bedrockium Mods
MCPE Bedrockium Mods
★5.0
Digger's Map
Digger's Map
★4.0