Hyperping - Cheap uptime and performance monitoring with detailed reporting and flexible alerting
Workona - A better way to work in the browser.
Robodash - Cron and uptime monitoring dashboard
OneTab - Whenever you find yourself with too many tabs, click the OneTab icon to convert all of your tabs into a list. When you need to access the tabs again, you can either restore them individually or all at once.
UptimeRobot App - Web, SSL, ports & Cron-jobs monitoring
Session Buddy - Manage Your Browser Sessions