I never used or heard of Simple. What do they do to make people manage their finances wiser?

They had a way to set money aside for goals. The money would be in your account but it would not show up in the available balance. So you could say, I want to buy this expensive thing, put in the amount you want to save towards it per month and the available balance would hide the money for you until you spent it.

That’s f’ing brilliant. Everyone is pretty good at stopping when out of money but if you can see it right there in a savings account the temptation to transfer can be strong.

This. 100%. The best I could do before switching to Simple was putting about half my paycheck in a savings account in another bank that I had no other accounts with and using that to pay my rent and maybe a few other bills. I was still always overdrawing my checking account at my main bank. I would occasionally have to go to the other bank, withdraw cash and drive over to the main bank to deposit it. Luckily, that bank didn't have any branches near where I worked, so I either had to wait 3 days for an online transfer or do my "shame banking" as my SO called it on my work from home day or Saturday morning. Simple's "Safe-to-Spend" is really a game changer for people like me.