SpeedCrunch - SpeedCrunch. SpeedCrunch is a high-precision scientific calculator featuring a fast, keyboard-driven user interface. It is free and open-source software, licensed under the GPL. Download Documentation Donate .

Procore - Procore is the world's most widely used construction project management software. Easy to use, mobile platform with unlimited user licenses.

Qalculate! - Qalculate! is a multiplatform multi-purpose desktop calculator.

BuilderTREND - Buildertrend is the #1 construction management software and construction app for home builders, remodelers, specialty contractors and commercial construction.

Numi App - Numi is a beautiful text calculator for Mac.

CoConstruct - CoConstruct's project management software helps custom builders & remodelers coordinate projects, communicate with clients & crew, and control.