Dosent work

Hey, I have a iPhone 6 and its up to date, I woke up and tried to make an edit, I finished the edit and tried to export it to my photos, it says "done" but is never saved into my photos, Ive tried everything from restarting my phone to deleting and reinstalling the app, Im getting annoyed and thinking this app is a waste of money and time, if anybody can help me please right back.
Sincerely,
Best_gfx

Best_gfx about Leonardo - Photo Layer Editor, v2.1