Compare software

SpeedCrunchABCalc Plus
Free

Free and open source under the GPL.

 Paid

ABCalc Plus is a paid edition; the standard ABCalc version is free.

Windows, macOS, Linux Windows, macOS, Linux, Android, iOS
  • Results update as you type
  • Up to 50 digits of precision
  • More than 100 built-in functions and over 100 unit conversions
  • Supports complex numbers and vectors
  • Latest advertised release is the long-standing 0.12
  • Keyboard-centred design may not suit button-only users
  • Some features and cloud sync depend on the platform
Downloadable app Downloadable app
Open source Closed source
License: GPL-2.0-or-later License: proprietary
No account needed Not stated if an account is needed
Works offline Not stated if it works offline

Checked October 2, 2026

Checked October 8, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.