Which construction app do you use alongside QBO — and was it worth it?

QBO does a lot, but many construction businesses pair it with a dedicated project management or estimating tool. We'd love to know what you're using:

• Apps like Buildertrend, Procore, Knowify, CoConstruct, or something else entirely?
• What does the app handle that QBO doesn't do natively?
• How well does the integration actually work in practice?
• And honestly — was the extra cost and setup worth it?

Share your setup and any tips for others considering the same route.