They both fill the same space.  This bot can leverage Slack's reminder feature to send individuals a reminder on launches.

But to be perfectly honest, I didn't even know about Ground Control.  I wrote this bot a few years ago and decided I ought to open source it.

Could you give examples of where this bot improves upon [Ground Control](https://spaceonly.slack.com/apps/AA71CPL3D-ground-control?next_id=0)?

[https://github.com/chadj/launch-library-slack-bot](https://github.com/chadj/launch-library-slack-bot)

Hello, I've written and created a simple Slack application that will send daily rocket launch notifications to a specified channel in Slack.  It will also let users set reminders for launches via Slack.  It's pretty easy to use and install.  If you're interested take a peek at the Github page for the installation link.

Launch Library Slack Bot - A Slack bot that provides daily rocket launch notifications and reminders