Developer Reflow Studio is planning to release Loopfield next month. This is an exciting new looper designed for use with field recordings. The app lets you tweak your recordings with granular effects. If this sounds interesting to you, you can help them with the beta!
To participate, open up the following link on your iOS device. 50 slots are available at the time of this posting: https://testflight.apple.com/join/SxjeX2ib
Experimenting with Loopfield and a metallophone. The generated loop is exported to Ableton Live and included in a full track.