If your goal is to use Adobe Captivate across different locations or on a mobile-friendly workflow, use these official methods: Using Captivate on a mobile device - Adobe Community
Every "portable" version crashed on publish or was flagged by Defender for Trojan:Win32/Wacatac. adobe captivate portable best
For casual users, the method is the safest. Accept that you cannot run the full engine without installation; work with the assets you have. If your goal is to use Adobe Captivate
: Record your screen on a PC and publish it so users can watch "How-To" demos on their phones while they work. adobe captivate portable best