Good but would like more options – Tinge Duotones Review

I have been looking for a duotone app to create a similar effect to Spotify's new aesthetic. This app is the closest I've been able to find. However two things are missing - there should be an option to customize the two colors you want to use to create a filter. And there should be a way to raise or lower the intensity of the filter. Depending on how contrasted my photos are, the filter can be a bit too strong.
Review by sammydigi on Tinge Duotones.