This app notifies you when a gem comes out. You don't need to set it up, just press the button when the gem box comes out.

It displays the time taken by the gem box in 48 hours, and also displays the date and time. You can choose to have it notify you by ring, or notification.

You can set the notification date and time by selecting the setting button on the bottom right.

It can also be used to display the period of the notification settings.

It is designed to work on both Android and iPhone. It will work on both phones and tablets.

It can be used on tablets and some Android phones.