Signul (Free) The Signul app works with Signul's personal beacon system ($50) to help you control your smart home, keep tabs on your kids, send automated messages, and much more. Signul uses beacons to create proximity zones in your home, office, car, or anywhere you perform repetitive tasks. The app detects these domains and triggers events when you enter or exit them. Other features include the Signul IFTTT Channel, which lets you create powerful connections between Signul and other smart connected devices. Look for other apps that use Signul in the future. Signul is available on Indiegogo at igg.me/at/signul. KidsCalculate Math Basics ($4.99) This highly recommended new app uses the methods of exploration, visualization, and practice to help children ages four through nine develop competence and confidence in math. Using an innovative system based on visual representation, KidsCalculate is more effective than traditional math teaching systems such as the abacus, the number line, and the Montessori stacking system. Visit KidsCalculate.com to learn more about how the app helps kids understand mathematical concepts that are the foundation of all quantitative reasoning.