Spirit is a service created by a former Twitter engineer, it allows you to schedule your tweets to be deleted. To get started, you need to log into Spirit with your Twitter account and Authorize read & write permissions to the app.
To enable this you just need to add a hash tag mentioning time period to your tweet (#1m,#2h,#3d). After authorization Spirit works on any device, you can tweet from laptop, tablet and Smartphone. If you want to stop this service just go to your Twitter account settings and revoke access to the app.
Hello World #2m
— Thetechhacker (@thetechhacker) September 3, 2013