Hi,
Please state days required and we need the following:
-- Video demo (let you know how app developed if you dont have iPhone device or simulator to test)

-- Push Notification and In App Purchase If needed
-- Ensure no memory leak issue
-- Always bug fix for free
-- Help for submission on AppStore

We need application with features like battery doctor pro:
http://appshopper.com/utilities/battery-doctor

Following features:
Full Cycle Charge is essential for extending your battery life, which has been recommended by Apple official website, please go to http://www.apple.com/batteries/ for more information.
►Background Charging◄ (NEW!)
Now we support "Background Charging"! You can lock your phone or even close battery doctor pro during charge!

You can do anything you want during charging: play a game, watch a movie, have a phone call, send SMS, or Send Email. (Do not unplug charger cable during charging. Launch app again to have a record of charging history at Log page. App will pop a finished Alarm message, and then you can remove the charger cable)

►STATUS◄
The app can display the "remaining time" statistics of your iPhone/iPod battery life in hours and minutes. It provides 14 remaining time items and you can swipe up/down to access more. Our data is more accurate than other battery apps.
►MAINTAIN◄
Let your battery RUN DOWN to at least 20% (Do not drain it completely, because energy is still needed to run Battery Doctor during the charging process). Then LAUNCH Battery Doctor app from home screen, and PLUG in the charger cable, and Battery Doctor will do the rest for you.

If you set the ALARM on, the app will pop up a notification message with sound to you when the Full Cycle Charge is completed.

After Normal Charge or Full Cycle Charge, it will perform maintenance by Trickle Charge. It can help max your battery capacity. You can set the Trickle Charge time at About page.

►LOG◄
Keep tracking the your charge history by graph everyday. Swipe left/right to see the history date. It will also summarize your Normal Charge counting and Full Cycle Charge counting.