What Ipad editor do I buy to control my Shrutthi-1?

What Ipad editor do I buy to control my Shrutthi-1? Lemur, TouchOSC, …
There are a lot, but what is better, has more control or is easier?

Thanks!

As far as I know there are templates available for those listed editors down below ( Click on Links )

Lemur
MidiDesigner

TouchOSC is nice and inexpensive. If you want more advanced stuff like bouncing ball sequencers then you should go for something like Lemur… though that one costs a bit more…

id love to see someone update the lemur patch with the mod matrix though!