Here's my open source project with the same name and feature set. Super coincidental. Mine's free - and has some clever hacks I put in for location routing that this one doesn't. It was hard to figure out and required engineering that's not a part of the public code base.

The source code and commit history can be seen here. https://github.com/mbeher2200/DarkHours

Thank you for this. The studio's name isn't the only coincidece: https://github.com/mbeher2200/DarkHours, his app is very similar to my open source project.

https://darkhours.app is very similar, with the same feature set.

And opensource, launched months ago. Full source and commit history here: https://github.com/mbeher2200/DarkHours