It’s noisy on the beach, and you want to call your kids back (you want to go home, or they have gone too far in the water, etc.)
Have a wristband that strongly vibrates when you “call it” using a phone app or a dedicated transmitter “button.”
Kids at certain ages are often hesitant (or lazy) to make play dates with their friends. It’s easier for them to either play with their phone or computer or nag their parents.
A playdate scheduling app that lets kids and parents invite others and find out which of their friends is free at what dates.
When you type “define moratorium” in google most of the time you get a pretty good explanation back. These are mostly hard to understand for kids.
It would be good to have a kids version of these. Maybe in the format of “define moratorium for kids”. Google can do it, but it could also be probably done by a dedicated site that is optimized for this template of a keyword query.
They regularly forget the keys at home and call you to know when are you coming home when they are stuck outside the front door.
A device connected to their keychain that makes their mobile phone beep when they go outside the house without the keys.
To help kids learn and develop the methods used by Sherlock Holmes so they can be smarter about solving problems.
Games that develop their mindfulness and deduction abilities, as well as explaining the pitfalls and basic concepts of these methods. Practical and theoretical.