I wasn't sure at first but my son was preparing for JAMB and kept struggling with the desktop version at the cyber café so I encouraged him to try ExamGuide CBT. The interface sha is straightforward even for someone like me who spends most time under a car bonnet, no confusing buttons or anything that makes you want to pull your hair out. My boy said the practice tests match the actual exam format well and that alone has made a difference in how confident he feels now. Worth every naira we spent on the subscription abeg.