<p><i>Countdate</i> lets you know how many days are left to a specific date. Next to the native app, there's also a web version available.</p><p><i>Countdate</i> is and will be free to download and use. As it's open source and under a free license, you can even take the code and modify it!</p><ul><li><b>Android、iOS:</b> Ready to use native app.</li><li><b>Web:</b> Web version of countdate app is also available.</li><li><b>Free to Use:</b> As always, this app is free to download and use!</li><li><b>Open Source:</b> Since this app is MIT licensed, you can modify it!</li></ul>