You can download the most recent, secure version of Affinity Designer directly from the official source without needing a product key:
For help with tools or learning the software, the Affinity Help Center offers extensive documentation on everything from artistic text to vector editing. AI responses may include mistakes. Learn more You can download the most recent, secure version
Note that Serif recommends moving to the new Affinity V2 suite as older iterations will not receive further updates. You can download the most recent