Here is a deep dive into why this doesn't exist, the dangers of the "fake" versions, and the legitimate alternatives for a mobile Lightroom workflow on Mac.
If you want Lightroom on macOS, install it properly via Creative Cloud. If you truly need portability between Macs, put your catalogs and previews on an external SSD, but keep the application installed on each Mac. That’s the real portable workflow—not the app itself, but your edits traveling with you. Anything promising "no install, no license" is either a scam, malware, or a very old 32-bit version that won't run. adobe lightroom macos portable
Instead of a portable app, many professionals install Lightroom on their Mac but keep their Photos and Catalog on a high-speed external SSD. This allows you to plug your library into any Mac with Lightroom installed and begin working immediately. System Requirements for macOS Here is a deep dive into why this
– Sketchy Torrents with patched binaries that disable license checks. These often break after macOS updates, contain malware (especially the ones promising "Adobe Lightroom macOS portable"), or cause kernel panics. The story here is usually "I lost my photo library" or "My Mac got adware." That’s the real portable workflow—not the app itself,
The closest thing to "portable" in the piracy world involves using a tool like Adobe Zii to patch a trial version. This is not portable. It is permanent modification of the host computer. It is messy, often breaks with macOS updates, and is a common vector for trojans (specifically hidden crypto-miners).
Adobe’s modern licensing model (Creative Cloud) is aggressive. It "phones home" constantly. Even if you managed to make the app portable, the moment you plug your USB drive into a new Mac, Adobe will detect a hardware ID change, demand re-activation, or flag the account for suspicious activity.