Welcome to TextSpam. The app does exactly as the title suggests and sends multiple messages to the target as fast as the device(and carrier) can operate. I created it mainly for personal use to attack my friends(should we have a texting war) but I figured that others might want a similar solution so I put it on the Play Store.
The link to the app is TextSpam
This is my first real app project so please don't be too harsh with the responses, I will try my best to fix issues. That being said, new features and contributions are welcome. I am in senior year in high school so I will most likely be occupied and it might take some time to respond on the forums and acknowledge anyone.
As you can imagine, due to the diversity of devices, it will be difficult to fully support every one as each carrier and custom rom has unique restrictions.
This project is currently under development and will be going open source in the following weeks.