Holderness Media, makers of Waviary, are back with a new Universal effects app. This comes with a lot of tutorial videos to help you get going. In addition to AudioCopy/Paste, I believe this is the first third-party app to support Kymatica's AudioShare export.
Echo Pad is a realtime Echo effect processor featuring a unique delay + sound on sound looper controlled by a multi-touch XY interface on your iPad, iPhone and iPod touch device.
Use the built in mic on your headphones, plug in a guitar, microphone, synth, drum machine, iOS device, or whatever you want using an audio interface such as the Apogee Jam or MIC, or one of the many other compatible iOS and USB audio interfaces.
Echo Pad is a Universal app that supports Audio Copy/Paste (General Pasteboard) for quickly sharing loops and recordings created with Echo Pad with other audio apps, as well as playing back and processing pasted audio from other apps through Echo Pad's effects. You can also export a loop or recording directly into the AudioShare file management app by using the "Export to AudioShare" functions. This exports your loop or recording directly into the AudioShare app without needing to use AudioCopy/Paste, for a super fast workflow.
I've embedded a whole big playlist of 10 videos, which starts with the overview and goes into the tutorials.