SMSReminder Advanced

This simple application is able to remind you of unread SMS messages. You can change the reminding interval, the sound for every reminder and also the vibration pattern in the settings.
In contrary to the free version, you are now able to set a reminder limit and excluded times. The reminder limit is the maximum count of reminders for an unread message. Excluded times mean that you can add times, where you do not want to get reminded, e.g. Monday to Friday 13 to 15 o'clock.

This application is automatically started in background, when you get a new text message. After the set interval, it is going to vibrate and play the chosen sound to remind you, if there are some unread messages and the interval starts again. The default interval is 5 minutes. The default sound is "Silent".
If you do not want the app to remind you, for example at night, simply check the option in the settings to deactivate it or add excluded times.

If you want, the service will turn on the screen for each reminder, which will increase the battery usage.

It needs the permissions to receive and read SMS messages to get started automatically and check the count of unread messages. The application does not need internet access because it does not have any external connections.
It needs the permission to read the external storage to play sound files from external storage as a reminder sound.