Why not use icloud - it's easy!
You don't need an app to email a contact to yourself. The standard contact app supports it.
The reason many of us no longer use icloud is because we read books as well as internet alternative news and we know that NSA is the repository of information we stupidly give not only about ourselves, but our family and friends as well, to Apple, Microsoft, Google, Amazon, Pinterest, on and on. We also don't like it that all this data can be used in malicious ways to create any kind of profile about a person that is desirable.
However, some of us recognize that in the crowd of masses where critical thinking is absent, and the "if you haven't done anything wrong, you have nothing to hide" types are prevalent, then this post will mean nothing.
Nothing to see hear - move along! Back to the matrix with you.