You have successfully upgraded to PREMIUM!

log out and log in C2B Viewer iPad

If you already had a basic C2B Viewer plan associated with the subscription email, your accounts will have been upgraded to PREMIUM. Access C2B Viewer again (log out/in) and you will be ready to work.

Purchase e-mail notification by C2B Viewer

If this is the first time you create a C2B Viewer account, check your email. We have sent you an email with a provisional password so you can access. You can change it later from the main access.


Checktobuild is a construction technology startup. Our mission is to innovate in construction management and inspection solutions by applying artificial intelligence and 3D models. We get the most out of your engineering and construction BIM projects so that your construction processes are more efficient, intuitive, and sustainable.