Timer HD is a basic countdown timer. You can use it for cooking, workout or as an intervaltimer.

Timer HD. Very simple but useful countdown interval timer. You can set timer intervals, alarm sound and notification options.

It also has some interface themes.

When counting down, your screen color will change slowly as a hourglass. Also you can set color themes in settings.

Timer HD has predefined intervals but you can set your custom interval for minutes.

Timer HD has notification option, so you can run it and lock your phone. When timer completes, it will play a notification sound and pops up a notification.