The download button opens the iTunes App Store, where you
may continue the download process. You must have iTunes installed with an
active iTunes account in order to download and install the software. This
download may not be available in some countries.
From Peak Programming:
*THE* best way to study for your FCC Element 3 Amateur Radio License Exam, General Class! This quizzing and practice exam application is a companion to the HamRadioSchool.com General License Course book and web site. All the questions from the current General question pool are included in both review-style quizzes and in properly weighted, full 35-question practice exams, just like the one you'll take at your VE session. The quizzes are fully coordinated with the book sections and the web media. The app also tracks your performance and reports it by section, so you'll know exactly what topics you need to review, and you'll be confident of when you're ready to take the exam.