Mobile development

I need an iPhone/iPad app. I already have a design for it, I just need it to be built. We require the construction of a two ended app (business and consumer), with a website interface that hooks into this. The purpose of this is to provide companies with feedback on their new products. Either through a website portal or through the business end of the app, a company can upload an image of their product and a short description. They can then define a demographic group e.g. females, aged 18-25 in the UK who have an interest in shopping. The company is then able to pay to reach a chosen amount of users within their demographic, this would require integration with both Stripe and PayPal. Once feedback is collected the business end of the app and the web portal will have reporting functions including graphing (with [login to view URL]) as well as giving users on the business end the opportunity to request more feedback at an additional cost from segments of users who gave them certain feedback. On the consumer end, users will need to be able to register either with their email or with Facebook (taking as much information as possible). Once registered they will need to answer a short questionnaire so that we can segment them for reaching different demographics. Once fully signed up, users will get served product images for products that they fall into the demographic category for. The UI here will be similar to tinder (tap for more information, swipe left if you dislike the product or swipe right if you like the product). Once a user has swiped, dependent upon their answer, 3 questions will pop up all of which are ranked on a scale of 1 to 10. Once they answer these questions they're given 10 tokens and served another product. The token systems works on the basis that once a user reaches 1000 tokens they can redeem them as PayPal credit or high street vouchers. This will need to be visible in their account and will feature a simple gamified UI with reward badges etc. showing their achievements and allowing them to share on Facebook. We will also need push notifications to notify users when more products are ready for their feedback. We hope that this brief is thorough and explains our need. We would also look for deployment on android, Should you be able to develop for there too. If you have any questions or queries, please contact us to discuss.