Calculated Industries has taken its powerful Qualifier Plus IIIX and IIIFX calculators (covered in Cool Tools back in 2005) and turned them into apps that can calculate loan-to-value ratios, amortizations with remaining balances, how much a buyer will save by giving up renting, future value on your listings, and more. Help clients consider various finance options, from complex ARMs to FHA payments. The company promises easy use with a built-in help function and simple sharing with the ability to e-mail loan worksheets to your clients with a keystroke. $9.99 for Android and iPhone. Calculated Industries; Carson City, Nev.; www.calculated.com/cat11/Real-Estate-Calculators.