I have a FluidUI Account set up with full wire frames for the project, lets discuss in more detail in chat.
APP iOS & Android + Web Access
Full mobile app with (one way) messaging platform to confirm appointments (Accept & Decline) basic text & attachment messages from Admin panel via web access, only one sender, only from admin web access.
1000+ phone users, with mobile authentication via SMS no passwords for login (Mobile Number + SMS authentication) all profile stored in the cloud only accessible via app.
Admin WEB view is able to group people send mass messages and request individual appointments. (Showing, time, location (map) & letting the user reply with accept or decline)
Mass safety text messages sent out to certain groups + profile updates of names, address database.
Must involved ability to upload full CSV files into database to update stored user profiles.
Each message needs a read receipt + full logs easily reportable by admin.
Security is a high priority.
Nothing fancy simple colors, no animations.
Admin Access, via browser running on individual domains on windows server and needs to be easy to set up new service.
Please provide email and I can invite you to view the FluidUI wire frame for a better
Please provide me with a previous app that sounds similar that you have worked on and a ball park estimate for full project.
This will be on going long term work preferably with monthly retainer.