Computer application

ACT! 2005 to 2013, including ACT! 19.0 (ACT!, ACT! Premium for Workgroups and ACT! Premium for Web, ACT! for Financial Planners, and ACT! for Real Estate are all supported)

Windows 8.1, Windows 8, Windows 7, Vista, Windows XP Professional, Windows XP Media Center Edition, Windows 2000 Professional, Windows 2000 Server, Windows 2003/2008/2012 Server (Standard, Enterprise Edition, Small Business Server, Web Edition)

Internet Connection

For optimum performance we recommend at least a 1.3 GHZ processor with 512 MB of RAM. For larger ACT! databases, we recommend a 2.3 GHZ processor with 1 GB of RAM

Handheld application

• BlackBerry OS 4.6 or higher
• BlackBerry 10 OS
• iOS 4.3 or higher
• Android 2.2 or higher
• Pocket PC / Treo Smartphone running Windows Mobile 5, 6.0, 6.1 or 6.5 with at least 10MB of Program Memory and approximately 10MB of Storage Memory available.