InstaCalc 1.0 for Mac was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The most popular version of InstaCalc for Mac is 1.0. The software lies within Productivity Tools, more precisely Calculators.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. This free application can be installed on Mac OS X 10.6 or later. This free Mac app is an intellectual property of Kalid Azad.
From the developer:
Whether you're browsing the web, working in email, PowerPoint, or Excel, bring up InstaCalc and crunch numbers on the fly. Share results in 1-click: no login required.
You may want to check out more Mac applications, such as Calculus, CalcMadeEasy - Multipurpose Calculator or Equation Calculator, which might be similar to InstaCalc.