Days Counter is an Android app developed by Starikov Mark that allows you to count days, weeks, months, and years before or after an event in your life. Whether it's a birthday, wedding, anniversary, vacation, travel, or any other important date, this app has got you covered.

One of the best features of this app is the countdown to the event and counting the days after the event. Additionally, the app comes with a convenient desktop widget that can be customized to suit your preferences. You can calculate the elapsed or remaining time in days, weeks, months, years, or all together to keep track of your future or past events.

Days Counter also offers a range of beautiful cards with a choice of colors to make your events appear even more special. You can sort events in different ways and manually, and transfer and save events between devices by uploading to a file and loading from a file. The app has a simple and straightforward interface that makes it easy to use for anyone.

Lastly, the app now has a dark theme, which is a great addition for users who prefer a darker interface. Overall, Days Counter is a great app for anyone who wants to keep track of their important dates in a simple and convenient way.