Digital magazine app for Ipad and Android tablets

[login to view URL] We have made a simple app and it is on the App store but need someone to help us take it further and to make it better. It currently is an app that shows the latest editions of one of our magazines and shows some banner advertising. It links to our current digital editions which are made by Zmags. We need this app to now do the following: Let the user know when a new magazine is online via push notification Have a back end CMS so we can upload the new editions when they are published Link to our digital editions online Offer the user a download of the digital edition to view offline on their tablet. We dont just want them to read a pdf! This needs to be page-turning like the online editions. Zmags do offer an offline download of our magazines but they are huge files and are intended for delivery to desktops via CD/USB stick. Not suitable for tablet viewing. Be a "white label" app - we have 30 publications so want an app that can be made and handed over to us to create a new app. We would like to be shown how the app has been made so we can update the app in-house. The banner adverts on the app - we need to control them. The app is intended for tablet use - Android and Ipad We are based in Dorking Surrey, so ideally need someone local to come and help us.