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ABCalc PlusSpeedCrunch
Paid

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

 Free

Free and open source under the GPL.

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

Checked October 8, 2026

Checked October 2, 2026

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