For personal use - you can add more features and developer this scanner for yourself
For Reskin - All of us have some scanner app on the phone right? So you need only find right scanner niche for example, "scanner for children" or "scanner for invoices" and more, and you can get huge number of installs
For your company brand: Its for example what I did and make the version with my logo in the icon and high splash screen and all my workers use daily AskTolik Scanner, not big invest right? And you have branding product!!!
Thanks