TRAX Free is the ad supported version of TRAX. Visit https://thetraxapp.com to find out about why TRAX is the best live backing track player for iPad.
TRAX Free has all the great features of TRAX 2.4 with the addition of ads.
If you would like an ad Free version of TRAX you can find it on the App Store here: https://itunes.apple.com/us/app/trax/id895640580?ls=1&mt=8