Healthchecks.io is a free and open source service for monitoring your cron jobs, background processes and scheduled tasks. Before adding Pushover integration, please log into Healthchecks.io:
After logging in, go to "Integrations → Add Pushover". Pushover supports different notification priorities from silent to "Emergency". Select your preferred priorities and click "Subscribe with Pushover".
You will be redirected to pushover.net and asked to confirm a subscription. Review the subscription details and click "Subscribe Me".
That is all! You will now be redirected back to "Integrations" page on Healthchecks.io and see the new integration!