The best way to get it is from Google play (Android Market or Play Store). Google play knows if your device meets minimum requirements and automatically notifies you future updates. Point your smart phone's browser to this page and press following image to get it.

Another way to get it: Go to Google play (press Play Store icon) directly from your phone and search for AlarmBuddy.

If you do not have a Google play account and your device is running on Android 2.2 or up, you can press on this image to download it. Then click on the download notification to install it.