Hi there,
We have analyzed your requirements and We are sure that we will be a Secure iOS Digital Currency Transaction System App to meet all your requirements.
We have separate team for Android and IOS.
Our skills : Android Studio,Java,Objective-C,Swift in X-code and c#.
If you share more details with me I will discuss with you.
You can see my profile we have done a lot of projects with client satisfaction.
So, if you provide this project then I can satisfy you 100% with our work.
PLEASE give me a one opportunity to work with you.
We can provide support after done project too.
We are very friendlier and flexible.