Geo Redirect - any recommendations?

Looking for a decent solution to redirect country-specific traffic based upon IP. Also something that detects mobile/pc (but not really important).

Either be a script, WP plugin, or an online service. Can anyone recommend something that they've had success with?

Tried looking around, but most solutions are abandoned.

Checkout MaxMind. They have both online service and free db which is updated once a month. You can easily automate the updating by making a script and run it with cron.