Hyperping - Cheap uptime and performance monitoring with detailed reporting and flexible alerting
Cronitor - Monitor cron jobs, micro-services, daemons and almost anything else, no setup required. Easier cron troubleshooting and no more silent failures.
ExternalCronJobs - You can now manage your cron jobs using this application
UptimeRobot App - Web, SSL, ports & Cron-jobs monitoring
Cronit App - Schedule and run cron jobs online from your browser, for free, with our online cronjobs service.
Cronhub - Cronhub helps you to easily monitor all your cron jobs in a beautiful dashboard. It alerts you when your cron job doesn't run on time or it fails.