<p>Android app making it possible to entirely freeze all background activities of any app.</p> <h1>A note to everyone who was supporting SuperFreezZ over the years:</h1> <p>SuperFreezZ was my first &quot;real&quot; programming project, and I was incredibly happy about strangers donating to me and translating the app into languages I never heard of, and all the positive feedback I received. My start into the world of free and open source software couldn&#39;t have been better.</p> <p>It is hard to imagine now that back in 2018, when I made my first commit, I barely knew how to program at all. I didn&#39;t know where to start, so I just forked an app called &quot;APK Extractor&quot;, and started finding out. I learned how to organize a (small) codebase, how to interact with a small-but-supportive community, and how to stay focused when there are lots of nice features that could be implemented.</p> <p>But the time has come to slowly wind down SuperFreezZ. These days, Android devices make it harder and harder for an app like SuperFreezZ to work properly. Also, Android devices are anyways restricting the amount of time an app is allowed to run in the background, making an app like SuperFreezZ less essential (without giving the user control over it, though). Myself, I am mostly busy working on other projects these days (mainly &quot;Delta Chat&quot; and &quot;Chatmail&quot;).</p> <p>It&#39;s not over yet, though! If you have an old and slow phone, or if you like that SuperFreezZ gives you control over which app runs and which does not, then enjoy. And who knows, maybe one day, I will revisit this first project of mine, adding more of the features that were asked for over the years, or maybe someone will fork it.</p> <p>If SuperFreezZ does not work for you, here are a few alternatives I found on F-Droid (though I can&#39;t personally vouch for them):</p> <ul> <li>&quot;Force Stop Helper&quot;: Similar to SuperFreezZ, with less features but still maintained, and you need to