VoiceJam Studio: Live Looper & Vocal Effects Processor has added two inApp purchases for advanced / live touring musicians in the latest update. Here's the detail ...
One touch access to 4 extra looping tracks, all with independently assignable sync, wave touch, and filters.
Talk Mode & Mic Mute: The talk button instantly mutes the loop output and switches your voice to dry-through, allowing you to talk to your audience without changing any configuration or stopping your loops. The Mic Mute button mutes your microphone input when you'd like to perform with your recorded loops without any voice input. (Requires iPhone 5 and better or iPad 4 and better to run all 8 loops at the low latency setting).
Fully configurable preset driven external MIDI control of almost all Looping features. Supports 3rd party MIDI keyboards, control surfaces, bluetooth MIDI controllers, 3rd party apps -- anything that can generate Core MIDI Events.