IDEA - IOS/ Android APP for 'Fill Stations'

I was batting around an Idea about fill stations after someone else mentioned it in a thread. I was thinking to write a simple app with a database that would be frequently updated with Fill stations across the WORLD/ or USA to start. 

This would have Stores, Paintball Shops, Paintball Fields, Shooting Ranges, Dive Shops, Charters, Fire Houses, Independent Fillers <-- Like a guy in a garage with a HP fill station that does it for free or charges a fee .... etc. (Places that allow outside filling)

Some other parts of the database would be PSI, Adapters Needed or have on hand, Prices, HOURS of Operation, Address, Contact Number, Email address

Features to be added for the future would be , Hydro Testing facilities. Could also do a Comprehensive list of shooting ranges that are Air friendly possibly pricing. 

Could possibly add LAWS section with a general list like crosmans with links to respective states. 

Named?
Air Gunners Resource (AGR)
Carbon Fill
PCP Station
?????/

If anyone has any ideas or feedback I would appreciate it. There would be a ton of leg work on my end. I would personally contact each place and verify all the info before it was entered into the database. 


I already have a small spread sheet of places I have discovered and the same goes for the community. We could all share and maybe have a rating system within the app for VERIFIED and UNVERIFIED fill stations and Hydro Testing Facilities. 

Would anyone be interested in an APP like this? Maybe for a small fee since there is a ton of leg work involved in something like this to provide accurate info. Like $3-$5 for the app?