Earlier this week, NAVIGON was released on the Windows Phone Marketplace bringing us a GPS navigation solution with offline maps. Today, Turn by Turn Navigation released their GPS navigation app with offline maps, Turn by Turn Navigation US + Canada. The application itself doesn't seem to have changed (here's our original take on Turn by Turn) asides from giving you the option to download complete maps to your Windows Phone.

While having your navigation maps stored on your Windows Phone is an advantage, Turn by Turn takes this advantage a step further by allowing you to choose what maps to download. NAVIGON missed the boat on this one and requires you to download the full 1.6GB of maps on to your Windows Phone.

The initial download for Turn by Turn Navigation US and Canada is 37mb. Using my regions as an example, I will have to download the South US and Southeastern US map packages (roughly 730mb). My total storage needs for Turn by Turn Navigation US + Canada will be roughly 767mb as opposed to the 1.6GB for NAVIGON.

Additionally, Turn by Turn is running $28.99 and while NAVIGON is running just a dollar more, that's an introductory price. After November 15th the $29.99 price for NAVIGON jumps to $49.99.

While Turn by Turn will give you a savings both in cost and storage requirements, we'll take the offline version out for a test drive to see how well it performs with offline maps. NAVIGON is still an outstanding navigation app in it's own right but Turn by Turn may give you a worthy alternative if cost and storage space is a concern.

We'll take Turn by Turn Navigation US + Canada out for a test drive and see how well the offline maps perform.  Look for a follow up performance review up shortly (if all goes right by tomorrow evening).

There is a trial version available for Turn by Turn that allows you to download one map package and try it for 24 hours. The full version will run you $28.99 and you can find Turn by Turn Navigation US + Canada here at the Windows Phone Marketplace.