Honestly; I&#x27;ve made money on most platforms. I&#x27;ve launched Android, Windows, iOS and Mac apps. As long as people are using the platform, it doesn&#x27;t really matter. Smaller platforms (such as windows phone) have the advantage of less competition. I know a guy who was making $40k a month from a Palm Twitter app a few years ago.<p>Example: <a href="https:&#x2F;&#x2F;itunes.apple.com&#x2F;us&#x2F;app&#x2F;ventrilode&#x2F;id486115720" rel="nofollow">https:&#x2F;&#x2F;itunes.apple.com&#x2F;us&#x2F;app&#x2F;ventrilode&#x2F;id486115720</a>. That&#x27;s an app I launched 4 years ago.<p>It brought in hundreds of thousands and took me 2 months to develop + the occasional bugfixes and small updates. Probably 3 months of work over a 4 year period.<p>&gt; Do they keep generating any sort of revenue after 6 months?<p>Depends on the app. In most cases, it&#x27;s not worth investing an additional 2 months developing&#x2F;improving an app if you can build it 1 month. Launch an MVP and see if it sells. You can always improve it then. But once you have an MVP ready, it usually doesn&#x27;t take much more time to &quot;finish&quot; the feature set of an app. That&#x27;s what great about apps; as a project they can be &quot;finished&quot;. Some apps sell for years, others only last 6-12 months. Also, for some apps the money comes in fast, for others it&#x27;s slower but they will last longer.<p>You just have need to find a target user group of significant size. The app I linked above integrates with a system that, a few years ago and at the time, had around 10m daily active users. It&#x27;s a niche communication system.<p>That means a subset of those users will automatically search for your app if you get it to pop up for the expected search keywords (&quot;app store seo&quot;). You&#x27;re tapping into that user group without having to spend a dime on marketing.<p>Find a user group with lots of users - people will buy your app.