When comparing AdAway vs Blokada, the Slant community recommends AdAway for most people. In the question“What are the best ad blockers?” AdAway is ranked 2nd while Blokada is ranked 4th. 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 and open source
Older version Blokada 4 still free. Blokada 5 free without VPN option. Best solution recommended is either Blokada 6 or Blokada 6+, based on personal experience with all these versions and trying other apps.
Pro Doesn't require root
Pro Great features
Blokada works across all of your apps, not only the browser! It doesn't require root, supports both wifi and mobile networks, and is perfectly safe and simple to use. Just turn it on, and it will do the job silently!
Pro Blocks Ads
Blokada efficiently blocks ads, tracking and malware. It saves your data plan, makes your device faster and protects your privacy.
Pro Blokada 6 Plus no longer has a locaVPN. VPN is now Cloud based
Individual sites or subsites can be manually blocked or whitelisted. Additional Blocklists have been added, others updated.
Improved performance with Cloud-based functions.
Pro Plus adds Cloud DNS
Great support from the developers using Blokada Talk or Telegram.
Pro Secure
Pro AdAway without Rooting
The equivelent of AdAway(best adblocker I've ever used for android) but without having to root your phone.
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 Cannot use with VPN
Because Blokada works by using an internal VPN to act as a filter, it is not possible to use Blokada if you're using an actual VPN.
