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Head-to-head · Calculators

Qalculate! vs Calc Pro

  • Updated Oct 2026
  • Both researched from official sources
  • 7 checks side by side
Higher score Qalculate! #1 in Calculators 9.3/10 Free plan Free plan✓ 6 of 6 features Visit Qalculate!
Calc Pro #5 in Calculators 8.8/10 Free plan Free plan✓ 5 of 6 features Visit Calc Pro

Qalculate! leads on 0 checks, Calc Pro on 0, and 7 are even. Who comes out ahead on the 7 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreQalculate! · 9.3/10
  • Free planboth
  • Most featuresQalculate! · 6 of 6

Qalculate! scores higher on our rubric for calculators: 9.3 against 8.8 out of 10; our editors rank them #1 and #5.

Qalculate! is the better fit for desktop users needing a powerful all-purpose calculator. Calc Pro is the better fit for people wanting broad calculator tools on many devices.

  • Qalculate! fits best

    Desktop users needing a powerful all-purpose calculator

  • Calc Pro fits best

    People wanting broad calculator tools on many devices

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Side by side

Feature Qalculate! 9.3/10 Visit ↗ Calc Pro 8.8/10 Visit ↗
At a glance
Editor score 9.3 8.8
Ranking #1 in Calculators #5 in Calculators
Best for Desktop users needing a powerful all-purpose calculator People wanting broad calculator tools on many devices
Pricing model Free Free
Starting price Free plan Free plan
Free plan ✓ ✓
Free trial — —
Deployment Desktop Cloud, Desktop, Mobile
Platforms Windows, Linux, macOS Web, Windows, iOS, Android
Built for Solo, Small business Solo, Small business
Features Qalculate! 6/6 · Calc Pro 5/6
Scientific functions ✓ ✓
Graphing ✓ ✓
Equation solver ✓ (best) Not checked yet
Financial functions ✓ ✓
Offline mode ✓ ✓
Calculation history ✓ ✓
Our review
Pros
  • Evaluates expressions with variables, units, and functions
  • Combines symbolic math, equation solving, and graphing
  • Offers over 400 functions plus searchable calculation history
  • Covers standard, scientific, graphing, financial, statistical, and date tools
  • Runs on web, Windows, iOS, and Android with offline mode
  • Tape history supports copying or emailing recent equations
Cons
  • Desktop software only, with no mobile platform listed
  • Support channels are limited to documentation
  • Its broad feature set may be more than basic calculations require
  • Edition choices include ad-supported or free-download versions
  • No open-source edition is offered
  • Stated fit centers on solo users and small organizations
Our verdict

Qalculate! is a free, open-source desktop calculator for people who need more than basic arithmetic. Its graphical GTK and Qt interfaces and command-line interface are available on Windows, Linux, and macOS. It handles expressions with…

Read the review →

Calc Pro brings everyday arithmetic, advanced scientific functions, graphing, financial worksheets, statistical analysis, unit and currency conversion, and date-and-time calculations into one suite. It is aimed at students and…

Read the review →
  1. Qalculate!Calculators 9.3Free plan
  2. Calc ProCalculators 8.8Free plan

Strengths and trade-offs

  • Qalculate! — where it wins

    • Evaluates expressions with variables, units, and functions
    • Combines symbolic math, equation solving, and graphing
    • Offers over 400 functions plus searchable calculation history

    Where it doesn't

    • Desktop software only, with no mobile platform listed
    • Support channels are limited to documentation
    • Its broad feature set may be more than basic calculations require

  • Calc Pro — where it wins

    • Covers standard, scientific, graphing, financial, statistical, and date tools
    • Runs on web, Windows, iOS, and Android with offline mode
    • Tape history supports copying or emailing recent equations

    Where it doesn't

    • Edition choices include ad-supported or free-download versions
    • No open-source edition is offered
    • Stated fit centers on solo users and small organizations

More comparisons

All calculators comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update