Apps like Comet Book

Here are some great alternatives to Comet Book by 株式会社 ビクセン :
Solar System Book
Solar System Book
★4.3
Starry Map
Starry Map
★4.6
TheSkyLive
TheSkyLive
★4.1
Dark Sky Map View & Finder
Dark Sky Map View & Finder
★4.2
ISS Detector Pro
ISS Detector Pro
★4.2
Solar System 3D Space Planets
Solar System 3D Space Planets
★3.5
Stellarium Plus - Star Map
Stellarium Plus - Star Map
★4.7
SkEye | Astronomy
SkEye | Astronomy
★4.4
PlanetDroid
PlanetDroid
★4.6
Solar Walk - Explore Planets
Solar Walk - Explore Planets
★4.2
Solar Walk 2 for Education
Solar Walk 2 for Education
★3.6
Planets Solar System 3D
Planets Solar System 3D
★3.9
Sky Tonight - Star Gazer Guide
Sky Tonight - Star Gazer Guide
★4.6
Solar Walk Lite Planetarium 3D
Solar Walk Lite Planetarium 3D
★4.6
Mobile Observatory Astronomy
Mobile Observatory Astronomy
★4.7
Star Roam Sky Map Planet
Star Roam Sky Map Planet
★4.3