More than 1 security system

I have an android as primary phone and was told I can run 2 different versions of the app on it. We currently have 1 security system at work and installed 1 at home. Wyze representative said only 1 system per account is allowed right now. I would have to sign in and out every time to manage both systems. Does anyone know a safe place to download an older version of the app? I found few places but they look sketchy.

There may be a solution depending on what phone you have:

If your phone isn’t one of the lucky ones, there is also the mentioned 3rd party solution.