Stopzilla has some poor and good reviews and the poor reviews would put me off from installing it.
Maybe download malwarebytes and give that a run to see if it finds any problems.You get a fortnights trial of the pro version now.
Best phone camera 2017
Stunning new film posters by Hattie Stewart, Joe Cruz & more
iPad Pro 10.5in (2017) review
28 astuces pour profiter au mieux de votre iPhone