Calc Pro vs Engineering Equation Solver (EES)

Calc Pro7.1Visit EEEngineering Equation Solver (EES)6.9Visit

Higher score Calc Pro #5 in Calculators 7.1/10 Free plan Free plan✓ 5 of 6 features Visit Calc Pro

vs

EE Engineering Equation Solver (EES) #7 in Calculators 6.9/10 From $160 · 30-day trial ✓ 4 of 6 features Visit EES

• Calc Pro fits best

  People wanting broad calculator tools on many devices

• Engineering Equation Solver (EES) fits best

  Engineers solving complex equation systems

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Side by side

Feature	Calc Pro 7.1/10 Visit ↗	EEEngineering Equation Solver (EES) 6.9/10 Visit ↗
At a glance
Editor score	7.1	6.9
Ranking	#5 in Calculators	#7 in Calculators
Best for	People wanting broad calculator tools on many devices	Engineers solving complex equation systems
Pricing model	Free	Paid
Starting price	Not published	Not published
Free plan	✓ (best)	—
Free trial	—	—
Deployment	Cloud, Desktop, Mobile	Desktop
Platforms	Web, Windows, iOS, Android	Windows
Built for	Solo, Small business	Small business, Mid-market, Enterprise
Features Calc Pro 5/6 · Engineering Equation Solver (EES) 4/6
Scientific functions	✓	✓
Graphing	✓	✓
Equation solver	Not published	✓ (best)
Financial functions	✓ (best)	Not published
Offline mode	✓	✓
Calculation history	✓ (best)	Not published
Our review
Pros	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	Solves nonlinear algebraic and differential equation systems. Includes thermodynamic and transport property functions. Supports parametric studies, uncertainty analysis, and plotting.
Cons	Edition choices include ad-supported or free-download versions No open-source edition is offered Stated fit centers on solo users and small organizations	Runs on Windows only. Commercial and Professional license prices are not stated here. Advanced optimization and automation features are limited to Professional.
Our verdict	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 →	Engineering Equation Solver (EES) is a Windows desktop program for engineers and others who regularly work with equation-based problems. It solves nonlinear algebraic and differential systems, and includes thermodynamic and transport… Read the review →

Strengths and trade-offs

• 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

• Engineering Equation Solver (EES) — where it wins

  • Solves nonlinear algebraic and differential equation systems.
  • Includes thermodynamic and transport property functions.
  • Supports parametric studies, uncertainty analysis, and plotting.

  Where it doesn't

  • Runs on Windows only.
  • Commercial and Professional license prices are not stated here.
  • Advanced optimization and automation features are limited to Professional.

• Calc Pro7.1/10 · Free plan

  Broad calculator coverage with graphing, financial tools, converters, and offline access.

  Visit Calc ProFull verdict →
• EEEngineering Equation Solver (EES)6.9/10 · From $160 · 30-day trial

  A Windows equation solver for engineers working with complex systems and properties.

  Visit EESFull verdict →