This app was mentioned in 6 comments, with an average of 4.17 upvotes
I use this on my mobile https://play.google.com/store/apps/details?id=com.jtmcn.archwiki.viewer
The Arch Wiki is the single greatest resource for any sort of information regarding Linux as an OS and its components. Thank you for the wiki, you amazing folks.
The Arch wiki is the only place you should use. You can use it via your Android phone - https://play.google.com/store/apps/details?id=com.jtmcn.archwiki.viewer&hl=en
FYI - ArchWiki Viewer from Play Store is out of date on v1.0.12 from 2017-06-25.
The F-Droid version is at v1.0.14 from 2019-12-04, which had quite a number of fixes.
You can also get it from the GitHub releases.
There is an Android app (https://play.google.com/store/apps/details?id=com.jtmcn.archwiki.viewer) which is really useful for Android users.