MS messages have become one of the most common forms of communication. They can also be extremely flexible, with scheduling and delivery reports. While delivery reports are usually included in stock SMS apps, scheduling is not. It would be great to have that ability, so you can easily send regular reminders to friends and coworkers, wish someone a happy birthday right at midnight, or otherwise pre-type a message that you want to send later because you know that you will be busy. There are plenty of apps available for Android which can take care of this for you.