title: How to write iOS app purely in C
body: <p>I read here <a href="https://stackoverflow.com/questions/180549/learn-c-first-before-learning-objective-c">Learn C Before Objective-C?</a></p>
  
  <blockquote>
    <p>Usually I then replace some Obj-C code with pure C code (after all you can mix them as much as you like, the content of an Obj-C method can be entirely, pure C code)</p>
  </blockquote>
  
  <p>Is this true? </p>
  
  <p>Is it possible to build an iPhone app purely in the C programming language?</p>