In order to sign up and create a Pix4D account:
1. Open the app.
2. In the Welcome page, tap Sign up for free.
3. In the first Sign-up screen, fill the different fields, select the country, and tap Next.
4. In the second Sign-up screen, select the software usage, and tap Sign up.
5. A confirmation email is sent. Confirm the Pix4D account by clicking the link in the email, and go back to the Welcome screen to log in and start using the app.