No, you cannot import existing photos to mood.camera. I wanted to discourage this kind of work flow as it goes against the core concept for the app.
I intentionally wanted to add a feeling of surprise and delight when using the app, akin to the film camera experience.
You can try out mood.camera for free with a 7-day trial. After your trial has ended full access can be purchased for a one time fee of $14.99 / £14.99, or via a $1.99 / £1.99 monthly subscription.
I haven't fully decided which features should be added next. If you have a great idea reach out on the Reddit or contact me!
The emulations in mood.camera are inspired by the classic qualities of film, not the specific look of any particular film. My goal was to create a wide variety of looks, for different scenarios, that were versatile and inspiring.
Due to my limited time and the added complexity of the Android eco-system, I am only developing an iPhone version of mood.camera for the foreseeable future.