#1 Tenkaykev
I had thought that the Inverter app written by Richard Russel of BBC Basic fame was no longer being developed so was surprised to see a recent update that exposes 
cell level information.
BBC Inverter App update
W
#2 wrighar
Can also do a few 'installer' features too now.
Also added newer inverters and more multi inverters
#3 Tenkaykev
Forgot to include the web instruction page.