Yes, you can. We recommend that you first test your use case with the free trial key and, once you purchase a commercial key, you simply need to replace the key in the app.
Visit FAQ: How do I get a trial license key?
Visit FAQ: What features are included in the free trial key, and what are the differences in comparison to a commercial key?
Check out the available commercial options that will give you access to a key without time limitations and publishing rights. Don't hesitate to contact us via sales@wikitude.com for any questions.