It started with hundreds of messages in the class chat.

TagBack began at our own kitchen table. One of us had spent another evening scrolling the class chat for a missing jumper. The other had spent the day running a mainstream school of 1,700 pupils, where the lost property pile never seemed to get any smaller.

Our co-founder has given twenty years to education and today leads that school as its head teacher. She sees the side parents never do: staff giving up their lunchtimes to sort coats nobody can match to a child, parents queuing at the office, and the end-of-term pile that goes to the second-hand shop or the donation box. She knows what a school can take on, and what it can't.

Our founder brings the other half. He builds technology for a living, from high street banking infrastructure and security-grade systems to software for global transport, where getting it wrong is never an option. He also runs a consultancy that multi-million-pound businesses call on to turn round struggling programmes of work. Between us, we understood the problem from every side, and we knew how to build the answer properly.

So we didn't start with a gadget and go looking for a use for it. We started with the problem and the people living with it, which included us, and worked backwards to the solution.

That meant beginning with the questions a head asks: is it safe, is it fair, and will it make more work for my staff? And the ones every parent asks: will it really bring my child's things home, and is my child's information safe? TagBack is our answer to both, built with the same care we'd want for our own children, because they're the first ones using it.

You're in safe hands. We're parents, we're teachers, and we've built it the way we'd want it built for ours.