Photo Date&Time is a simple tool that can add date&time label to your photos automatically when you take photo with iPhone's camera.
key features:
* Customize date&time label position
* Customize date&time label's font & color
* Original photo resolution is maintained
* All photos are saved to your photo library automatically
Options for 24-hour and 12-hour date formats are provided.
Daily Data Tracker 
Password Cube 
Calendar Reminder 