CronSafe is described as 'Monitors your cron jobs, scheduled tasks, and background workers using a dead man's switch (heartbeat) pattern. If your job doesn't ping CronSafe within the expected interval, you get alerted instantly via Slack, email, or webhook' and is an website in the development category. There are more than 10 alternatives to CronSafe, not only websites but also apps for a variety of platforms, including SaaS, Self-Hosted, Linux and iPad apps. The best CronSafe alternative is ntfy, which is both free and Open Source. Other great sites and apps similar to CronSafe are Sentry, Healthchecks.io, Honeybadger and Notify.