Android App for Finance Calculators

I am looking for an Android app developer to create a finance calculator app. The app will focus on investment and savings calculators, with a minimalist design style. The ideal candidate should have experience with creating finance calculator apps and be able to provide examples of their work.

Specific requirements for the project include:
- user login/signup
- finance calculators (formulae's will be provided)
- ad mob integration
- google analytics

If you think you have the skills and experience necessary for this project, please apply with examples of your previous work.