BOMBITUP App is receiving the most recent updates from the programmer whereas other sites API isn’t working. But those are not upgrading the API of all SMS sending services.
Formerly there are a lot of sites providing the exact same site/app. SMS Bomber APK is just one of the android application that’s often used for pranking purposes. These aren’t real SMS Bombs rather than a run of prompt messages, emails & calls that will disturb/irritate your friend for sure. You can Send SMS Bombs to your friends & family. Most of the users use this App for pranking their relatives, friends, & special ones.