Event Calendar App - A simple, easy to manage, way of displaying events

Trello Calendar Connector by Cronofy - See and Organize your Trello deadlines inside your calendar

Plan - Plan is a better way to organize.

Bringschuld - Simple periodic task and email monitoring

Whenever - Casual calendar app for iOS

Cronitor - Monitor cron jobs, micro-services, daemons and almost anything else, no setup required. Easier cron troubleshooting and no more silent failures.