Checkster

Checkster automatically checks you in to Southwest Airlines. Once you have entered your flight confirmation details, you can leave the rest to Checkster. Twenty-four hours before your flight, Checkster will do the rest; as long as your phone is on and connected to the internet. Checkster will remind you to keep your phone on and connected before check in. Upon check in, your boarding passes will be sent to your phone or email. Checkster will periodically check for changes to your flight and adjust the check in if necessary.

What else does it do:
1. Handle multiple confirmation numbers for multiple people simultaneously.
2. Cancel a scheduled check in.
3. Re-try failed check ins.
4. Notify you of pending check ins.
5. Notify you of a successful check in.