Can I upgrade my license?

Yes, you can easily upgrade your license whenever you like from your account page. The amount you have already paid for AffiliateWP will be subtracted from the cost of the upgrade.

Click on "View Upgrades" as shown below: 

If you do not have an account, you can go to https://affiliatewp.com/account/register to create one. As long as you register with the same email that you purchased with, it will be automatically connected to your purchase.

Do I need to reinstall AffiliateWP when I upgrade?

When you upgrade your license, you don't need to take any further action such as uninstalling or reinstalling the plugin. The AffiliateWP plugin is exactly the same between all license levels - the only difference being the number of sites you can install AffiliateWP on, and access to the pro add-ons from your Account page (pro add-ons will only be accessible if you upgrade to a Professional or Ultimate license).