In our company less than 50% of the employees do have a business smartphone. We use Microsoft Intune to manage our business devices.
Now we would really like to provide the app to private phones as well but with limited content. From private phones it should only be possible to check specific content (dedicated communities, blogs, ...) and not the entire environment with its full functionalities. With this limitation we want to avoid that "third parties" can login with a regular phone to our full environment. The full access should only be available with a managed business phone.