Well, the full domain will probably give you a hint of why I&#x27;d want a very solid &quot;twist&quot; before I went up against it: <a href="https:&#x2F;&#x2F;keep.google.com&#x2F;" rel="nofollow">https:&#x2F;&#x2F;keep.google.com&#x2F;</a> It&#x27;s a default install on many Android phones I&#x27;ve had. Your app isn&#x27;t going to get that.<p>And, just because I&#x27;ve been on the internet a while and I know what comes next, let me repeat my point: Yes, you <i>can</i> compete with built-in apps, but you need a <i>twist</i>. &quot;Shared lists&quot; is a solved problem; if that&#x27;s all you&#x27;ve got, you&#x27;ve got nothing.