Tacview Starter is free forever. With Tacview Starter you can record flights from your favorite flight simulator and replay them. This may be all you need. However, if you are interested in additional paid features, read on to find out how to buy a license or upgrade your existing license.
To buy a license of Tacview Standard or Tacview Advanced when you do not currently have a license, go through the website:
Buy a License - Tacview Website
Notice that volume discounts are available for group buys as small as 2 users.
Buy a license - Group Buys
Enter your coupon if you have one.
Buy a License - Coupons
You will receive a product key by email. Click the yellow key icon to be prompted to enter it into Tacview.
Buy a License - Yellow Key Icon
Buying through Steam
Before buying through Steam, please note that a Steam license cannot be transferred to standalone Tacview.
If you wish to upgrade from the Steam version of Tacview Standard to the Steam version of Tacview Advanced, see Upgrading - Steam
To buy through Steam if you do not currently have a Steam Tacview license, go to Tacview's store page and choose the DLC you are interested in.
Buy a License - Steam
Upgrading - Standalone (Non-Steam)
If you have a standalone Tacview Standard license, email us at Tacview Support to get a coupon for a discount off Tacview Advanced which is approximately equal to the difference in price between the two versions. Please include your Tacview Standard product key in the email. Find it at Help → About Tacview:
Buy a License - About Tacview
Once you receive the coupon code, follow the steps at the top of the page to complete your purchase.
When you get your product key, go to Help → Upgrade to Tacview Advanced to be prompted to enter it.
Buy a License - Upgrade to Tacview Advanced
Upgrading - Steam
If you have the Steam version of Tacview Standard, use the Tacview Advanced (upgrade) Steam bundle to upgrade at a discount.
If you are wondering whether you can transfer your standalone license to Steam or vice-versa, see the FAQ Entry