Periodic tasks, like cron-or email-jobs can fail silently. Bringschuld alerts you via text message and email the minute a task didn't run.
Trello Calendar Connector by Cronofy
See and Organize your Trello deadlines inside your calendar
Postmark for iOS
Monitor your transactional email from anywhere.
Email is a critical component of most web applications, and we know how important it is to have tools to investigate and resolve any delivery issues quickly. The Postmark iOS app allows you to take our powerful email monitoring and troubleshooting tools with you wherever you go.