Cada vs Todos

First time poster - Hola What is the difference between using "cada dia" and "todos las dias" when expressing the frequency of "every day"?

Bienvenido ! So, I'll try to help. I think the difference is that when you say _cada dia_ you accentuate, you emphasize that something happens every single day. While _todos los dias_ just means _all days_. That should be it.