handyCalc vs Issabel
A side-by-side look at handyCalc and Issabel. For an in-depth review of either product, follow the links below.
handyCalc
Office & Productivity
handyCalc is a free, open-source calculator app for Windows. It provides standard, scientific, programmer, date calculation, and converter modes for convenient math and unit conversions. handyCalc is lightweight, customizable, and supports copying math results.
calculatormathconverterfreeopen-source
Issabel
Network & Admin
Issabel is an open-source unified communications platform that provides PBX, voicemail, fax, instant messaging, and other communication tools. It is built on top of FreePBX and the Asterisk IP PBX.
pbxvoipunified-communications
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