Xamarin App, Around 19 Screens. All screens have been designed and available in psd format. API's have been developed already, can be documented and given to you as you need them.
39 freelancers are bidding on average £1344 for this job
https://www.dropbox.com/s/as1kgb329kjm4my/freelancer.txt?dl=0 Please check my proposal Relevant Skills and Experience Google App, Xamarin Proposed Milestones £1250 GBP - Milestone
that is realli very lamp estimation, as in your case the GUI plays a lot. and it's not possible to make the estimation without of full understanding. thanks