Cordova GPS multimedia (audio/video/image/text) walking tour app (zip / sqllite / gps / deviceorientation / leaflet maps / local notifications)

Cordova or titanium appcelerator Mobile app - exportable to android & ios. Source code is needed and clean as WE need to update the app in the future (for sure). It is an app for walking containing a growing set of walking routes. Each walk-route contains interactive GPS points. We use a backend (we already made it) to create the tours/walks. Then we export all data for a single walk to a zipfile and update the Master Content JSON which contains an overview of all walks. We now need an app to display this data and make the walks interactive and we are looking for you! Tech to be used in the app: - SQLlite / local storage for storing all remote app content data locally. - Zip file unzipping remote data to local - Audioplayer, videoplayer, image gallery for the content on the walks - Background audio, background location - Calls to google analytics on several events - GPS, hopefully modifiyable settings so battery won't drain. Only use GPS when in map mode or when sorting based on user. - Leaflet maps with Openstreetmaps baselayer and offline maps when provided in individual walks. - Custom fonts We can provide: - code we currently use for the webviews (mapviews / leaflet cluster etc) - current datamodel for SQLlite tables from another app which is similar *** We will provide full designs, including fonts to be used. *** *** The designs need to be implemented 1-on-1 ***