Too much advertising makes it crash over and over. – PerfectReader Classic - Beautiful PDF Reader with Unique Text Reflow, Sepia/Night/Daytime reading modes, plus High-quality Text To Speech (Free version) Review

Played the same ad in Greek periodically while I was reading. EXTREMELY annoying and then it would crash. Eventually would not open book at all. Just say no.
Review by EE Musician on PerfectReader Classic - Beautiful PDF Reader with Unique Text Reflow, Sepia/Night/Daytime reading modes, plus High-quality Text To Speech (Free version).