Some improvements you can make to password manager:
- make it a stand alone program on desktop. A browser extension has some limits and it's not always confortable to use.
- remove the continuos request to sign in opening the browsers
- in the android app, you can add a section for apps credentials that are differents from the site's ones
- i have password manager with my Premium Security Suite - 10 device and just one profile for the password manager. I think you have to add the possibity to have more users.
- I don't mind to pay something more for a more confortable program.