Geometry Expressions

At a glance

• Editor score
  6.2 / 10
• Pricing
  Free plan · paid from $59
• Best for
  Users needing constraint-based geometry and algebra output
• Free plan
  Yes
• Dynamic constructions
  Yes
• Founded
  1989 · Portland, Oregon, USA
• Facts checked
  28 Sep 2026

• Where it wins

  • Connects geometric constraints with symbolic and numerical measurements.
  • Lets users extract and solve algebra from geometric models.
  • Supports theorem exploration, code generation, and CAS export.

• Where it doesn't

  • The personal or student license costs $59 one-time.
  • The high school site license costs $1,449 one-time.
  • Other site licenses require a quote.

Our verdict on Geometry Expressions

Geometry Expressions is an interactive symbolic geometry system from Saltire Software for educators, students, and engineers who need more than a drawing tool. Users create figures with constraints, change dimensions interactively, and inspect numerical or symbolic measurements. The software can extract algebra from geometric models for solving and visual exploration. A free browser edition, GXWeb, provides an accessible way to work with mathematical models and explore geometry theorems, while paid Geometry Expressions licenses are available for Mac and Windows.

Its standout strength is the link between a construction and its algebraic representation. Users can vary parameters and dimensions, then derive and solve algebra from the model rather than treating the diagram and equations as separate tasks. The feature set also extends to theorem exploration in GXWeb, JavaScript, dashboard-widget and Lua app generation, code generation in multiple programming languages, and export to computer algebra systems. That breadth makes it a fit for mathematical modeling and geometry work that needs symbolic output; buyers seeking only basic figure construction may not need those capabilities.

According to the vendor's pricing page, the Personal or Student or HS Teacher License is $59 one-time and perpetual, while the Academic License is $249 and the Industrial & Commercial License is $395, also one-time. A High School Site License costs $1,449 one-time and covers every computer in the school; other Geometry Expressions site licenses are available by quote. The pricing model includes a free plan through GXWeb, but the listed paid licenses make the full desktop product a considered purchase, particularly for an individual. Choose it when constraint-based models, algebra output, or CAS workflows matter; consider another option if your needs are limited to free geometric construction.

Geometry Expressions pricing

All 5 Geometry Expressions plans and prices →

Geometry Expressions fact sheet

Geometry Expressions integrations

Geometry Expressions lists 1 integrations on its own site.

• Computer Algebra Systems (CAS)

Alternatives to Geometry Expressions

• GeoGebraA broad geometry and mathematics suite with adaptive practice, classroom tools, and offline apps.9.0
• GDGNU Dr. GeoA free, programmable desktop geometry environment for dynamic constructions and exploration.8.2
• KKigA free desktop tool for exploring constructions, with macros and drawing features.7.7

See all Geometry Expressions alternatives →

Featured on iTechGuides

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Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026

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Last updated 29 Sep 2026 · How we research and update