Good day,
I have over 20 years of web design & development experience which includes over 10 years on WordPress, it is actually my favorite.
I am bidding for phase 1 as requested, still I am able to work on phases 2 & 3, phase 3 for developing device app will be a big phase, but I'd build it in relation to the website for saving data and for messaging services later on.
For phase 1, kindly view my humble profile then start a chat with me. During any work I do, I am always available to talk to my clients.
Regards,