Cost overruns are deadly to a construction company’s margins. Use this mobile app to keep track of where your projects stand and whether you need to take measures to reduce costs. Using easy-to-measure tasks like square yards of slab completed or feet of wall, the app compares actual to estimated and calculates percent complete and cost to complete. Setup and cleanup times that can throw off an estimate can also be added. Created by the Stevens Construction Institute, the app is $19.99 on iTunes. To download, visit here.