Summary: If you are an architect, construction foreman, CAD designer or even owner of a building, you know having blueprints at your fingertips can be very helpful. That is what PlanGrid does - puts your designs at your fingertips. How PlanGrid Works You start by signing up at Plangrid.com. Create and upload blueprints or other pictures and designs in their system (Free account gives you 50 sheets of storage, price plans for larger use). Log on to the iPad app to call up those blueprints. From there you can make annotations, highlight areas and more in layers (so you don't change the originals). If you make a mistake you are able to backtrack and remove markups. You can also send pictures to update progress on the building or renovations. You can attach PDF files for RFIs and specifications. The app is free and designed for all iOS devices. Check out the previous iPad app – Puzzlejuice
