Comparison

GeoGebra Geometry vs CNC Lathe Simulator

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

GeoGebra Geometry

Create geometric constructions like triangles, lines, and circles. Explore interactive geometry by dragging elements, measuring lengths and areas, and transforming shapes. Save and share your creations, and discover learning activities.

Highlights
  • Construct points, lines, circles, and polygons
  • Explore interactive geometry by dragging
  • Measure lengths and areas
  • Transform shapes (mirror, rotate, dilate)
  • Advanced constructions with conics and locus
  • Investigate construction steps
  • Search for learning activities
Features
Read full description

Easily construct triangles, drag points, draw parallel lines, intersect circles, save and share your results. Millions of people around the world use GeoGebra to learn mathematics and science. Join us! • Create constructions with points, lines, circles, polygons, and angles • Explore interactive geometry by dragging points • Measure lengths and areas • Transform shapes by mirroring, rotating and dilating them • Try advanced constructions with conics and locus lines • Investigate construction steps to get deeper understanding • Search for free learning activities directly from our app • Save and share your results with others We’d love to hear from you: send us your questions or feedback via Twitter @geogebra or via https://help.geogebra.org

About

CNC Lathe Simulator

This educational tool simulates a CNC lathe for beginners in machine building. It allows users to learn G-code programming for turning operations with 3D visualization of tool movements and workpiece processing. Ideal for students and distance learning in metallurgy and engineering.

Highlights
  • G-code programming for turning operations
  • 3D simulation of lathe and tool movements
  • Workpiece surface visualization
  • Control program file management
  • Cutting tool geometric parameter setup
  • Continuous and step-by-step program execution
  • G-code reference guide
Features
Read full description

CNC Lathe Simulator is a software simulator of a numerical control lathe is an educational methodological development intended for basic familiarization of novice machine building specialists with the principles of programming parts turning operations using standard G-code (ISO). The three-dimensional simulation model is based on a lathe with an inclined bed, equipped with a CNC system, a twelve-position turret head, a three-jaw chuck, a tailstock, a system for supplying lubricating and cooling liquid, and other units. The material is processed along two controlled axes. Field of application of the software product: educational process using computer technology: laboratory lessons of students in computer classes, distance learning, demonstration support of lecture material in the group of areas of training and specialties: «Metallurgy, Engineering and Material Processing». The main functions of the application: editing the code of control programs of a lathe, operations with control program files, setting up geometric parameters of a cutting tool, continuous/step-by-step execution of control program blocks, three-dimensional visualization of tool movements in the machine’s workspace, simplified visualization of the workpiece surface, calculation of processing modes, a brief reference guide on using G-code. https://sunspire.site/terms_of_service.html

Screenshots

GeoGebra Geometry4 screens
CNC Lathe Simulator4 screens

Verdict

The call

The clearest difference is price: GeoGebra Geometry at Free against CNC Lathe Simulator's $6.99. GeoGebra Geometry also leads on ratings volume (75 vs 14). On rating, review sentiment, update cadence and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

GeoGebra Geometry is free to download; CNC Lathe Simulator costs $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

CNC Lathe Simulator holds the better App Store score, 4.2 against 4.0. That said, the two scores are not equally well evidenced: GeoGebra Geometry has 75 ratings behind it against 14, so its average is the more settled of the two. Written reviews split almost evenly too, at 55% and 55% positive.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 26, 2026 and October 27, 2026 respectively.

Scorecard2 real differences · 8 level
GeoGebra Geometry versus CNC Lathe Simulator: the parameters behind the verdict, then further details
ParameterGeoGebra GeometryCNC Lathe Simulator
PriceFree — better$6.99
Rating4.0 (75 ratings)4.2 (14 ratings) — better
Positive reviews55.2% of reviews — better54.7% of reviews
Number of ratings75 — better14
Update frequencyMonthlyMonthly
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better16.6
Further details — not scored
Size104 MB54 MB
Age rating4+4+
DeveloperGeoGebra GmbH旭 陈

Customer experience

GeoGebra Geometry

All ratings75 ratings
Positive73.3%
Neutral6.7%
Negative20.0%
Written reviews163 reviews
Positive55.2%
Neutral11.7%
Negative33.1%

CNC Lathe Simulator

All ratings14 ratings
Positive78.6%
Neutral7.1%
Negative14.3%
Written reviews75 reviews
Positive54.7%
Neutral17.3%
Negative28.0%

Bugs and requests

GeoGebra Geometry

Reported bugs

13 issues
  • App crashes when adjusting line thickness
  • Unexpected crashes when switching apps
  • Random crashes losing all work
  • White space appearing in toolbox after app switching
  • Crashes when working with reflected circles
Show 8 more
  • App fails to launch on certain iPad models
  • Crashes when using tangent tool
  • Crashes on iPhone devices
  • Help button crashes the app
  • Implicit curve equations display incorrectly
  • Palm rejection issues with Apple Pencil
  • Accidental app closure during work
  • Data loss on app restart

Requested features

19 requests
  • Save and load projects within the app
  • Open local files functionality
  • Copy and paste objects
  • Undo/redo buttons
  • Layer support for complex designs
Show 14 more
  • Remove all objects at once function
  • Dynamic sliders for shape manipulation
  • Dark theme option
  • Distance and angle measurement tools
  • Text insertion and LaTeX support
  • Image import from gallery
  • Trace/locus function
  • 3D coordinate system support
  • Group objects functionality
  • Vertical and horizontal line snapping
  • Better help documentation for iPad
  • Customizable tool palette
  • Move labels by clicking
  • Export partial screen regions

CNC Lathe Simulator

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

GeoGebra Geometry

No in-app purchases

None

CNC Lathe Simulator

No in-app purchases

Questions

Is GeoGebra Geometry free?
GeoGebra Geometry is free to download, with no in-app purchases.
Is CNC Lathe Simulator free?
CNC Lathe Simulator costs $6.99, with no in-app purchases.
Which has better reviews, GeoGebra Geometry or CNC Lathe Simulator?
CNC Lathe Simulator is rated higher. GeoGebra Geometry averages 4.0 out of 5 from 75 ratings, while CNC Lathe Simulator averages 4.2 from 14 ratings.
Do GeoGebra Geometry or CNC Lathe Simulator have ads?
Neither GeoGebra Geometry nor CNC Lathe Simulator shows ads.
Which is updated more often, GeoGebra Geometry or CNC Lathe Simulator?
GeoGebra Geometry ships an update monthly, and CNC Lathe Simulator monthly. Most recently, GeoGebra Geometry was updated on October 26, 2026 and CNC Lathe Simulator on October 27, 2026.

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