As an idea, I like this. I didn’t create an account but do you have to pay for this? If not, why do you need to create an account? One thing I would say is th

As an idea, I like this. I didn’t create an account but do you have to pay for this? If not, why do you need to create an account? One thing I would say is that the whole concept of 7 days is great, but some people would benefit from future/past review. Maybe hiding “advanced” past/future views somewhere would be beneficial?