title: Check supported architectures of iOS app
body: <p>How can I check supported archs of my apps (ex. MyApp.app)?</p>
  
  <p>This folder is product after building by Xcode.</p>
  
  <p>I use command: "file MyApp.app/MyApp" and it shows:</p>
  
  <pre><code>Mach-O executable arm
  </code></pre>
  
  <p>What is this?</p>
  
  <p>I really want to know which architectures it supports (armv6, armv7, armv7s or i386).</p>