6. VoIP servicesâ€”Skype (www.skype.com). Skype lets you make local and international phone calls, send messages, or make video and conference calls with ease. The app is easy to install; basic services are free. You can assign phone numbers to staff and manage calls and costs through the Business Control Panel (BCP). Also consider: Cinch (free; www.cinchcast.com). In beta at press time, Cinch is a nifty app that lets you easily capture and share text, video, and audio.