Apps like Comet Book

Here are some great alternatives to Comet Book by 株式会社ビクセン :
ISS Detector Pro
ISS Detector Pro
★4.3
Solar System Book
Solar System Book
★4.4
TheSkyLive
TheSkyLive
★4.4
Dark Sky Map View & Finder
Dark Sky Map View & Finder
★3.3
Starry Map
Starry Map
★4.4
SkEye | Astronomy
SkEye | Astronomy
★4.3
Solar Walk - Explore Planets
Solar Walk - Explore Planets
★4.3
PlanetDroid
PlanetDroid
★4.6
Solar Walk 2 for Education
Solar Walk 2 for Education
★3.6
Mobile Observatory Astronomy
Mobile Observatory Astronomy
★4.6
Solar Walk Lite Planetarium 3D
Solar Walk Lite Planetarium 3D
★4.5
Star Roam Sky Map Planet
Star Roam Sky Map Planet
★4.5
The Sky Pro by Redshift
The Sky Pro by Redshift
★4.7
Arloon Solar System
Arloon Solar System
★3.7
Solar Walk Free - Explore the
Solar Walk Free - Explore the
★4.4
Heavens-Above
Heavens-Above
★4.1