How to get the(P01R-M1) app on 2 phones?

Just got the P01R-M1 and can’t figure out how to set it up on 2 phones, of it can. I put it on my husband’s phone and it now shows no device on mine now. The paper work and Goggle has nothing about it. Any help will be appreciated.

If you want to connect the same device to 2 different INKBIRD APP accounts. Please share the device by adding members.
Please refer to: