iPhone and Android contact application with backend in cloud -- 2

Requirements i. Free signup a. Verify phone number b. Verify personal mail c. Verify work email iii. Import contacts from phone into app iv. Upload contacts from phone to cloud v. Search for contacts from cloud vi. Message contacts found using SMS or email built into phone vii. Mobile push notifications viii. Webapp later ii. Paid signup (free first month) a. Billing should ask for Paypal details after 1 mont b. Additional details for paid signup I have a google doc that I can share Questions to be answered by the app developer while responding 1. Confirm that you can do each and every requirement. Clearly mention each number and say Yes to each 2. Have you written app that works on both android and iphone that share a common backend? Provide sample app that works on both 3. What database backends are you familiar with? 4. Are you familiar with mobile notifications? 5. Your physical location address 6. Your work timings 7. What other services will I need to purchase before app goes live? How much will they cost? 8. Are you familiar with webapp as well? Sample web apps