Photography (20 GB) £9.98/mo

Desktop software has a 2 activation limit and doesn't work on iPads and Androids.

The mobile apps that come with your Photography Plan bundle are separate.  I am not aware of any limit on how many devices you can install them on from Google Play or Apple Stores.

https://www.adobe.com/creativecloud/catalog/mobile.html

Cloud License allows 2 activations at a time http://www.adobe.com/legal/licenses-terms.html
-Install on a 2nd computer https://community.adobe.com/t5/Get-Started/Installing-creative-cloud-on-two-devices/td-p/6048133
-https://helpx.adobe.com/creative-cloud/help/sign-in-out-activate-apps.html
-Windows or Mac does not matter... 2 on the same operating system, or 1 on each
-No family plan https://community.adobe.com/t5/Get-Started/Family-use-of-Creative-Cloud-on-Chromebook/td-p/9269588

SOME apps are available from the Apple/Android stores... to ask about non-computer apps start at https://community.adobe.com/ and find the forums for apps, such as https://community.adobe.com/t5/lightroom-for-mobile-apple-tv/bd-p/lightroom-for-mobile-and-apple-tv?page=1&sort=latest_replies&filter=all