Google Advertising ID(GAID) by Google and IDFA by Apple can be collided?
<p>Android and iOS developer! (Hopefully Googler or Appler?)</p>

<p>I want to track mobiles for ad by advertising id,
but I encountered one important question.</p>

<p><code>Can GAID and IDFA be the same between different two devices in real world?</code></p>

<p>Apple and Google seems to be not publishing the algorithm to generate the id,
but we developer tacitly thinking the hex-32 digit numbers are generated randomly,
so no collision would occur.</p>

<p>I want to be sure that no collision happens!</p>