Hello sir,
I'm a passionate iOS programmer with two years of experience by now. I use this system for thermal heating myself, therefore I have a good understanding of the task.
If I'll be the one rewarded, I'll structure work for your app in 4 phases (which I'll accomplish in 5 days): 1. coding the basic engine; 2. polishing the existing code; 3. graphical design; 4. bug fixing. Out of those, coding the basic engine will take longest.
Can you tell me more details about the project? I'd love to help you out with it!
Please take my bid into consideration,
Stefan