Convert Excel Spreadsheet to Android App

Looking for an app developer to convert a spreadsheet to an IOS 7 app. The spreadsheet is basically a timesheet for tracking employee hours. There are some formulas. This is a V1 project so I need to app to basically accept inputted data and store it as a record that can be recalled later and also emailed copy of any record on push of a button. I have a fully functional excel sheet to copy functionality from. There will be a quick followup with a V2 with some additional features and graphic UI redesign, so the design must be flexible to include new features later. V3 will include further UI refinements and also require porting to android. Budget for V1 is $50 for the simple conversion. If you do a good job you will automatically get the next revisions. Budget for V2 will be $200. Budget for V3 will be $300