Add some features to iOS app

We currently have a social / dating iPhone app waiting to be completed.
The app is completely in Swift and connected to Firebase
Additions required:

- chat system (firebase) between 2 users. Chat page has already been created.
- push notifications (firebase) (there will be around 7 types of notifications)
- matching system. Connect 2 users when they are compatible with each other
- add events page where events are shown and and logic to automatically create an event (shared between 2 users) after they "match"
- encrypt passwords in signup (now they are saved in plain text)
- (optional) instead of saving all fields in db during the signup in the last step (making it slower), save new fields in each step of signup.

Already implemented:

- login / signup
- please start your proposal with "CHECKED" in order to know you went through the full description.
- phone verification
- add pictures to account
- geolocation
- edit account page
- main page with other users profiles and swiping system