I offer $40 for an app

I offer $40 to anyone who can create an app for me created with App Inventor.

  • I need a private chat between multiple people, that is, I and everyone to whom I will distribute the chat must be able to write to each other privately without the other members being able to see each other's private chats.
  • When a group user receives a private message, they must receive an acoustic push notification.
  • The app must also provide for the possible sending of images.
  • The app must have a button that, when pressed, takes you to the list of all users of the chat, a list from which you can select the user to whom you want to send the message.
  • When you select a user, you need to see the entire message history. Those sent aligned on the right and those received on the left.
    Can someone do this for me for $40???

As for the database to use I would like Firebase and not CloudDB

Before paying, of course, I want to test the app.

60$ will be a good deal,
If ok DM Me will explain what plan I have to complete this project