JamUp Lite is a self-contained, professional-grade multi-effect app that will provide access to 1 amp model and 4 stomp effects. It supports up to 5 simultaneous amp/FX through an easy drag-and-drop signal path, it also allows easy pre and post effect position arrangement.
JamUp is incredibly simple to use, running a multi-effect pedal on a touch-based device is an incredibly amazing experience. Each effect parameter can be accessed in realtime through a simple touch just like the real thing. There’s no digging through menus, no learning process and no hassles. A uniquely designed touch-and-drag amp/effects signal path is available to allow users to generate the most flexible and creative tone.
JamUp Lite Features:
Ultra low latency multi-effect
Runs up to 5 simultaneous amp/fx
4 stomp effects (classic distortion, echo delay, digital reverb, noise gate)
1 amp (British 30 TB)
Convolution based cabinet simulation
Easy arrangement of pre and post effect position
Further details - http://positivegrid.com/jamup-lite/
Grab JamUp Lite now – 
tried it for a free download, it’s worthy a try if you have iRig, nice tone
just updated to the iPad version, J… sounds and looks just great..
I like the intuitive way to setup the signal path.
The sound quality and features are great for a free app, but I would like to see more features in next paid version.
and a tuner please…
The latest JamUp lite version does include a tuner.
It even has a phrase sampler and a player which can control music speed and pitch.
Cool!
[...] we reported earlier this year, Positive Grid’s JamUp Lite came as a welcome addition to the growing collection of virtual [...]