Does Google restrict distributing Android apps to BETA customers outside of the marketplace

We are developing iOS and Adroid apps for a service we are building. Apple has specific rules and limitations associated with distributing apps outside of the App store for use in BETA testing. I know how to distribute the apk file to our BETA customers outside of the Google marketpl开发者_运维知识库ace, however are there any legal limitations or requirements for registering BETA customers when using this approach?

No You can distribute a BETA. They will just have to enable a option to allow outside sources to install a application. When the user tried to install it it will give them this option to enable it.