Write an iPhone application

Shot Doctor will be an app for Android and iOS that has been designed specifically with sports and professional shooters in mind. It is a multifaceted tool, with a number of innovative features, which have the intended purpose of simplifying a user’s shooting, hunting and general outdoor endeavours. I am looking for a long term partner to develop this app in stages. The expected budget for the app in its entirety is between $20,000 and $50,000 over the next 12 to 18 months as new features and functionality are added. The app will also need an integrated website at some stage through this development that links the end user with the data they enter on their mobile devices. Companies wishing to work with me on the development of this app need to have experience with a number of key technologies, but most of these will not be required for version 1.0 REQUIRED expertise: -Strong understanding of complex mathematics and algorithm development (I have developed a number of proprietary algorithms for certain elements of the app that you will need to be able to integrate at some stage) -Experience utilising phone based data sources (such as inbuilt GPS) as well as experience using external API’s for other data (such as weather forecast services) -Cloud data storage integration -Website development and integration with the data from the app -Social integration for sign-up and sharing -Development of backend analytics to monitor user behaviour, sign-in frequency etc. (I’m sure you probably have some sort of standard analytics you have previously used?) while also being able to send messages etc. out to end users.