We do not have a night mode available. However, here are some tips and tricks to optimize your night observations using the Unistellar App : 

1 - You can obviously start by reducing the luminosity of your phone screen

2 - You can use a 3rd party app :

• If you use Android click here to see the top 8 Night Vision Apps For Android
• If you use Apple, check out our YouTube video : 

Clear skies and may the darkness of the night be with you!