Hi,
I've just release geolizr. geolizr is an app that allows you to
- switch the currency based on the visitor's location (with an optional currency switcher)
- change the price formatting on a per currency basis
- add country specific notifications that can be used for promiting special offers, free shipping, cookie policies, etc.
- add country specific redirects
geolizr also comes with a JavaScript API that can be used to implement your very own Geo Targeting solutions
I'm currently looking for beta testers (the app is completely free during the trial period).
Here is a demo store demonstrating the currency + notification features: http://geolizr.myshopify.com/
You can find more informations about geolizr and install it on the app page: https://apps.shopify.com/geolizr
Any feedback or ideas on further features is highly appreciated :)