Schemes - Scheduled Networking is a software that you can use to easily schedule emails, text messages, Facebook posts, and tweets.
First you have to choose which medium you want to use: Facebook, Gmail, Twitter, or SMS. Then enter the name, email address, telephone number, Twitter handle, or whatever information you need, plus the message, and finally, set the day and time you want it to be sent or posted.
It's important to note that for a message to be sent, the Android device needs to be on at that moment. So if you schedule a tweet to be posted at 4:00 in the afternoon, for example, the device needs to be on at 4:00 in the afternoon. If not, the message won't send.
Schemes - Scheduled Networking is quite a useful tool for community managers as it allows you to schedule Facebook posts and tweets well in advance.