Stafn is built and supported by one person, not a team. Questions, bug reports, and feedback all go to the same inbox, and a real person reads every message.
Email dblanks322@gmail.com any time, or use "Send feedback" in the app itself — Settings → About → Send feedback opens the same inbox directly.
If something's not working right, it helps to mention what you were doing, what you expected to happen, and what happened instead. A screenshot never hurts.
Usually within a day or two. Stafn is a small, independent app, so replies come from an actual person rather than a support queue.