Pingdom - With website monitoring from Pingdom you will be the first to know when your website is down. No installation required. 30-day free trial.
Reminder - A better way to keep track of your reminders 📝
StatusCake - Website Uptime Monitoring & Alerts – Free Unlimited Downtime Monitoring
Wonder - Your personal research assistant
Better Uptime - We call you when your website goes down
Later Reminders - Super simple way to schedule reminders on your phone