Children are innocent and still very vulnerable to gannguan jin. Therefore as parents we must be on guard from spirits attacking our children, because we are charged with the responsibility to protect them. There are indications that children are bothered by jinn, in between
1. Feel someone is following or whispering
2. Like to stare or talk alone
3. Growing abnormally (ex .: talking a bit long, walking a long time, etc.)
4. Frequent nightmares
5. Likes to fuss

Ruqiyah is a method of syar'i treatment that is exemplified by the Messenger of Allah to invoke protection from reinforcements and illness. Done by playing out the verses of the Koran.
In this application you can play tunable verses ruqyah offline.