IK’s line of iPhone apps can be purchased at 50% off for a limited time. From now until August 31st, 2013 you can get IK’s AmpliTube, SampleTank, iGrand Piano and VocaLive for iPhone apps for only $9.99 each instead of $19.99. IK’s DJ Rig for iPhone can be yours for only $4.99 instead of $9.99. You can also get AmpliTube Fender, AmpliTube Slash and AmpliTube Jimi Hendrix for iPhone apps for only $6.99 instead of $14.99. That’s not all, you can get IK’s iRig Recorder for only $3.99/ instead of $7.99, and the entire range of GrooveMaker apps for iPhone and iPad for only $1.99 each on the App Store as well.