How to communicate with two owners of the same dog(s)?

I discovered a technique to enable me and two owners of the same dog(s) to communicate via the Rover intermediary phone number. One owner needs to associate his/her phone to the Rover account. The other owner needs to download the Rover mobile app. The owner who associates a phone to the account will be able to send and receive Rover messages via the native phone text messaging system. The owner who downloads the Rover app will be able to send and receive Rover messages through the Rover app. Is this the best technique to handle the communication challenge with two owners of the same dog(s)?