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        1. Frequently Asked Questions

          Commercial Licensing

          Answers to your questions about Qt commercial licensing including subscription and license management. 

          Commercial licensing FAQ

          Online Purchase & Payments

          All related questions about the online purchase and payment regulations in our WebShop and Marketplace.. 

          Go to this FAQ

          Marketplace Extensions

          Essential answers about how purchases and extensions for Qt are handled in the Qt Marketplace platform.

          Marketplace FAQ

          Open Source Qt Usage

          Find information about using Qt under the (L)GPL, your options, obligations and restrictions. 

          Qt open source licensing FAQ