Hey i see you require a simple mobile application. Well i could do this for you.
Firstly, i will require you to talk to me about the project. Points to discuss:
1. Detailed problem statement
2. Technical specifications
2. Design related issues
3. Test cases and requirements
4. Publishing
Secondly, the application will be fully developed in up to 3 days time depending on what we discuss and agree upon.
Thirdly, I would require you to test the application and let me know if you have any concerns.
Finally, i would require a day to fix issues that you find while testing.
NOTE: This can be done faster than i have proposed, if you require it sooner. Although, i recommend a slow paced approach to ensure that your application is of the highest quality.