I tried many different Auv3 loopers and finally L7 has become my weapon of choice. Most other loopers arenˋt even Auv3 like Loopy, Samplebot and soo many others… I use L7 inside AUM on PureAcid by JimAudio. If you record too many loops (about 10 in my case but I have lots of other things going on simultanously..) and keep them all on Play, Ipad’s sound performance will begin to decrease, but that‘s normal.