AlertBird is a parental control Keyboard app for parents to monitor the input activities of their kids.

*** How it works? ***
1. Parents add keywords to the alert words list.
2. Enable the AlertBird keyboard from Settings > General > Keyboard.
3. Tap on the AlertBird keyboard and Enable “Allow full access”.
4. If you have multiple keyboards, switch to the AlertBird keyboard and disable others.

Then AlertBird will start monitoring the words you added and send alerts when triggered.