When comparing AdAway vs AdBlock Plus, the Slant community recommends AdAway for most people. In the question“What are the best ad blockers?” AdAway is ranked 2nd while AdBlock Plus is ranked 21st. The most important reason people chose AdAway is:
Use the hosts files to block ads, so it works for everything.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro System wide blocking
Use the hosts files to block ads, so it works for everything.
Pro Doesn't consume CPU time or memory
The app updates the hosts file periodically but doesn't need to run in the background in order to block ads, which is especially convenient for older phones.
Pro Can use systemless host
Can be used without modifying the system if rooted with magisk.
Pro Can use custom host files
Lots of people and keep their own updated host files used for blocking ads and ad away supports loading them in or even adding their source for autoloading.
Pro Free & open source
Pro Blocks a wide selection of annoying ads
Video ads on YouTube, Facebook ads, flashy banners, pop-ups, pop-unders and much more.
Cons
Con Needs root (by design)
Needs root to update the hosts file.
Con Won't block same domain ads
Because the host file can only redirect domains, if the ad and content are on the same domain the ad will be displayed.
Con Uses too much RAM
AdBlock+ tends to use a lot of memory, which has been documented in many use cases as well as admitted by AdBlock themselves. Considering there are alternatives out there that can block ads successfully with half the RAM usage as AdBlock, one has to wonder why this is a problem specific to AdBock.
Con Users automatically opted in to whitelist
AdBlock+ has an automatic whitelist when installed that allows certain advertisers through the blocking mechanism. The fact that these advertisers pay for this privilege makes this particular scenario rife with conflict of interest.