We usually answer in the same day to all questions, in this order: first on our e-mails, then on our forum and finally on other forums.
For some reason your question regarding an iPad application was skipped, most likely because it was a general question about our future plans. That is no excuse though, I'm sorry for the delayed answer.
There are small differences between brokers due to different spreads, price feed, off quotes, requotes, internet connection, and so on…
Sometimes there are small differences between different accounts on the same broker because of the above reasons.
All brokers will show similar patterns on longer term in most cases.
It's a good thing to test the robots on different brokers, because the differences between brokers are visible on demo accounts also ant this way you can chose a better broker, by choosing the broker with the best results in demo testing.
Our robots are designed to work for a longer term (for many years) and sometimes the daily or weekly results are misleading (for better or worse), compared with a longer term average.