
About
Securely store, manage, and share your professional certifications and licenses. Upload documents, categorize them for easy access, and instantly share verified credentials via QR code or SMS link for on-site proof.
What's New in BuilderFax By Lumber
2026.07.20
July 21, 2026
Bug fixes and features.
Developer apps
FAQ
What is BuilderFax used for?
BuilderFax is a digital credential wallet designed for construction professionals. It allows users to securely store, manage, and share their certifications, licenses, training records, and memberships all in one place.
How do I add credentials to BuilderFax?
You can add credentials by uploading front and back photos of your certifications, licenses, education records, training, or union memberships directly within the app. You can then enter the relevant details to manage your professional documents.
How can I share my verified credentials with BuilderFax?
BuilderFax allows you to share verified credentials instantly via a QR code or an SMS link. The QR code leads to a secure verification page that is visible for 24 hours unless refreshed.
Is BuilderFax available on Android devices?
Based on the provided data, BuilderFax is supported on iPhone, iPad, and iPod. Information regarding Android compatibility is not available.
What is the age rating for BuilderFax?
BuilderFax has an age rating of 4+, making it suitable for a wide range of users. This indicates it contains no mature content.
How often is BuilderFax updated?
The latest version of BuilderFax was released on 2026.05.31, with the last update occurring on 2026-06-01. This suggests a frequent update cycle.
Does BuilderFax have ads?
No, BuilderFax does not contain advertisements. The app is free to download and use without any ad interruptions.
What is the user sentiment for BuilderFax?
BuilderFax has received an excellent rating of 5.0 stars from 4 ratings, indicating highly positive user sentiment. Users appear very satisfied with its functionality.





