Apps like Astrophoto Calculator

Here are some great alternatives to Astrophoto Calculator by W. Strickling :
Star Trail Calculator
Star Trail Calculator
★4.5
Photo Tools PRO
Photo Tools PRO
★4.4
Photo Tools
Photo Tools
★3.6
Telescope calculator
Telescope calculator
★4.1
Telescope calculator pro
Telescope calculator pro
★4.5
Bellows Factor
Bellows Factor
★4.4
Photography Calculator Tools
Photography Calculator Tools
★4.2
Photo Tools
Photo Tools
★3.5
APT Darkness Clock
APT Darkness Clock
★5.0
FotoTool - Photographer Tools
FotoTool - Photographer Tools
★4.5
Hyperfocal - (calculator)
Hyperfocal - (calculator)
★3.9
Ephemeris: Sun and Moon Seeker
Ephemeris: Sun and Moon Seeker
★3.4
Photo Friend exposure & meter
Photo Friend exposure & meter
★4.4
Photo Metadata Viewer
Photo Metadata Viewer
★3.3
Photographer's companion
Photographer's companion
★4.0
SkEye Cam
SkEye Cam
★4.3