There are two plans. The free plan allows you to record reminders to yourself and then receive them in e-mails. the “Pro” plan, at $3.99 per month, adds the features you see in this video.
After visiting the website, I do not see anything that would cause me to change from reQall. However, it does offer me an option in case reQall should one day go away. But I hope that day never comes.