Amazon is running an app giveaway for Christmas this year, with a free app bundle worth over $200. The bundle includes games, productivity tools, utilities, media applications, and more. One noteworthy app for all the Arduino and Raspberry Pi tinkerers out there is the ElectroDroid Pro which boasts a large collection of electronics-related tools and references.
And, with New Year's Eve coming up, also check out aGupieWare's own New Year's Eve Noise Maker app, which is available from the App Store
for just $0.99. The app plays numerous New Year's Eve sounds and
songs. Irritate ears with the sound of a horn. Twist brains with the
twirler sound. Perform an ensemble of the instruments above, or play the
classic New Year's song "Auld Lang Syne." Bring the noise!