Omega Calculator is described as 'Ad-free calculator supporting basic, scientific, and complex math with single-line input, saved history, precision settings, and customizable color themes' and is a Calculator in the education & reference category. There are more than 100 alternatives to Omega Calculator for a variety of platforms, including Android, Windows, Mac, Web-based and iPhone apps. The best Omega Calculator alternative is SpeedCrunch, which is both free and Open Source. Other great apps like Omega Calculator are Qalculate!, fxSolver, Numbat and Numi.