When comparing AppCleaner vs ImageOptim, the Slant community recommends AppCleaner for most people. In the question“What are the best power user tools for macOS?” AppCleaner is ranked 6th while ImageOptim is ranked 8th.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Easily and properly uninstall apps without leaving bits and pieces behind
Pro Saves a lot of room and cleans up your hard drive
AppCleaner does a much more thorough job removing unwanted applicated compared to the default method. This saves space and potentially speeds up your Mac.
Pro Simple, drag'n'drop app deletion
Pro Can whitelist certain apps
Pro Uninstalls widgets and plug-ins as well
Pro Losslessly compresses PNG, GIF, and JPEG images
Great for compressing images for web usage or saving harddrive space.
Pro Fast & Simple
Pro Simple drag'n' drop interface
Simply drag images (or folders) into the window.
Pro Tries several different image optimizers before picking the best one
Pro Edits files in place
It does edit files in place, overwriting the original. This is exactly what I want, so I love it, but it's good to know beforehand.
Pro Can handle PNG, GIF, and JPEG images
Great for compressing images for web usage or saving harddrive space.
Cons
Con Closed-source
No source available. No open source license.
Con Compression algorithm not as good as counterparts
Con Cannot abort an optimization
Optimization can run for a long time. Sometimes it reaches 20% quickly and then spend a long time to attain 21.2%. But you cannot interrupt the process.