Unfortunately this AI was designed for Full Computers The average low end phoned may not have enough processing power for this AI to provide a true challenge. It is, however better than no AI.
Even on its hardest setting, it's about 20 kyu; it didn't get any territory at all in 3 games (and I'm not very good). Uninstalling.
Sadly, this AI is exceptionally poor. As others pointed, even on level 10 it can be trivially beaten so badly it gets 0 territory.