How does one become a beta tester?

[Ralph Casimir]

Is it an app specific sort of thing or can I sign up to beta test everything for Win10 and Win10Mobile?

 

[PepperdotNet]

Join the Insider program.

https://insider.windows.com/

If you're talking about beta testing apps, you'd need to contact the developer of the ones you are interested in.

 

[Ralph Casimir]

Thank you!