It&#x27;s not app specific - but Alex Turnbull of the oft-linked groovehq did a detailed blog post about his outreach strategy: <a href="https:&#x2F;&#x2F;www.groovehq.com&#x2F;blog&#x2F;1000-subscribers" rel="nofollow">https:&#x2F;&#x2F;www.groovehq.com&#x2F;blog&#x2F;1000-subscribers</a> .<p>Some of this advice transfers over to an app, some of not so much.