If you want to explore OCCT or use its core features, the Personal edition is your best choice: no authentication required—just download the client, and you're ready to go. For more advanced features (like custom certificates) or use in a business environment, the Professional and Enterprise editions are more suitable. Visit our purchase page or contact us directly for a custom quote. Once your purchase is processed, you'll be able to download the appropriate client from this page—provided you are logged in.

Although we offer five different license tiers, there are only four distinct software versions available for download: ▪ Personal (Personal and Patreon licenses) ▪ Pro (Pro license) ▪ Enterprise (Enterprise and Enterprise+ licenses) ▪ CommandLine (Enterprise and Enterprise+ licenses)

Once your purchase is completed, your license key will be sent to you via email as an attachment. You can also retrieve it from your dashboard if you're logged in with the account you provided during the purchase. Please note that depending on the license type or payment method, processing times may vary.