Table 2.

The keywords used in this study.

Keywords	Subkeywords
Drainage	drain; battery; Drain; Battery
Spyware	spy; spied; spyware; Spy; Spied; Spyware
Malfunctioning	doesn’t work; didn’t work; not working; Doesn’t work; Didn’t work; Not working
Crashes	crash; freeze; Crash; Freeze
Privacy concerns	privacy issue; privacy concern; location concern; tracking me; track me; tracking us; Privacy issue; Privacy concern; Location concern; Tracking me; Track me; Tracking us
Ineffective	useless; rubbish; garbage; Useless; Rubbish; Garbage
Bugs	bug; buggy; Bug; Buggy
Installation issues	can’t install; doesn’t install; couldn’t install; Can’t install; Doesn’t install; Couldn’t install
Incompatible	can’t download; couldn’t download; incompatible; Can’t download; Couldn’t download; Incompatible