How many devices can I install programs on at the same time?

i have mac, 2 pc and ipad. 

To be clear, as a mobile device with a mobile operating system, the iPad is not counted in the activation count.

Activation counts apply to computers running Mac and Windows desktop operating systems only.

Installation (software installed locally but requires activation to be used) and activation (software can be used) are two different things.

• The Cloud apps can be installed at the same time on as many computers as you like
• 1 Mac and 2 PCs can all have the apps installed at the same time. I have them installed on 5 computers but only two are activated at any one time.
• When you sign out, the software remains installed but deactivated.
• The software can only be activated for use on a maximum of 2 computers at a time: you can toggle the activation between computers via Help > Sign In / Sign Out
• Once you've reached your 2 activation limit, to use an app on a deactivated computer, you must first deactivate it from another computer. Then activate it via Help > Sign In.
• The apps can only be used on one computer at a time

You may install and activate Creative Cloud on 2 desktops / laptops at a time -- either Win, Mac or both.  BUT you may use only one device at a time.

Make sure your computer meets the minimum CPU & GPU requirements. Most Creative Cloud apps work on:
Windows 10 versions 21H1, 20H2, 2004, and 1909 (LTSB branches are not supported)
macOS 12 (Monterey), macOS 11 (Big Sur), macOS 10.16 or 10.15 (Catalina)
- https://helpx.adobe.com/creative-cloud/system-requirements.html

Mobile apps are separate.

https://helpx.adobe.com/creative-cloud/faq/mobileapps.html

Hope that helps.

Cloud License allows 2 activations at a time http://www.adobe.com/legal/licenses-terms.html
-you may use on ONE computer at a time, and you may NOT share your subscription
-https://community.adobe.com/t5/download-install/on-how-many-computers-can-i-use-my-creative-cloud-subscription/td-p/11233565?cid=101&cgid=18323&page=1
-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