Comparison

Trgnmtry vs Graph³

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

Head to head
About

Trgnmtry

Explore trigonometric relationships visually by interacting with a unit circle. Customize displayed measures and angle intervals for a dynamic learning experience. Adapts beautifully to both light and dark modes.

Highlights
  • Interactive unit circle
  • Visualize trigonometric measures
  • Customizable angle intervals
  • Supports light and dark mode
  • Geometric relation display
Features
Read full description

Watch as all of the trigonometric measures are drawn in their geometric relations as you drag your finger around the unit circle. You can choose which measures to see, and set specific angle intervals that can be shown. Looks beautiful in iOS Light or Dark mode!

About

Graph³

Visualize mathematical functions in 2D and 3D with over 24 built-in functions. Automatically detect special points, customize settings for each function, and save your work. Ideal for students and math enthusiasts.

Highlights
  • 2D and 3D function display
  • Over 24 mathematical functions
  • Automatic detection of special points
  • Customizable function settings
  • Save and load scenes
  • Value table for function analysis
Features
Read full description

Graph is your powerful tool for visualizing mathematical functions—ideal for school, university, and anyone who wants to experience mathematics firsthand. 2D and 3D Display Seamlessly switch between classic 2D views and stunning 3D surface rendering. Graph functions with one or two variables and explore them interactively by zooming, panning, and rotating. Over 24 Mathematical Functions Trigonometric, hyperbolic, logarithmic, and other functions are at your disposal—including sin, cos, tan, ln, sqrt, and many more. Complex expressions with nested structures are reliably evaluated. Automatically Detect Special Points Zeros, y-intercepts, intersections, and points of tangency are automatically calculated and highlighted on the graph—so you can see the important properties of your functions at a glance. Individual Settings for Each Function Adjust the color, line thickness, resolution, and domain for each function individually. Graph multiple functions simultaneously and compare them directly. Save and Load Scenes Save all your work as a scene—including all functions, settings, colors, and camera positions. Reload saved scenes at any time and continue working seamlessly. Value Table View function values ​​anywhere and analyze the behavior of your functions in detail. Thoughtful Design Color-coded input validation, an integrated mathematical keyboard, and a modern glass-effect design ensure a pleasant user experience. Highlights at a Glance: 2D and 3D Function Display Over 24 Mathematical Functions Automatic Detection of Special Points Customizable Color and Display Settings Save and Load Scenes Value Table Mathematical Keyboard

Screenshots

Graph³1 screens

Verdict

The call

The clearest difference is in-app purchases: Trgnmtry at none against Graph³'s 1. Graph³'s advantage is update cadence (every 3 weeks vs every 21 months) and iOS requirement (9.0 vs 17.0). On ads and device support 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

UpkeepUpdate frequency

Trgnmtry ships an update every 21 months, Graph³ every 3 weeks. The most recent releases landed on October 2, 2026 and October 4, 2026 respectively.

Scorecard4 real differences · 6 level
Trgnmtry versus Graph³: the parameters behind the verdict, then further details
ParameterTrgnmtryGraph³
Price—$0.99 — better
Rating3.0 (4 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings4 — better—
Update frequencyEvery 21 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS17.09.0 — better
Further details — not scored
Size5 MB10 MB
Age rating4+4+
DeveloperAndrew McKnightNorbert Grieger

In-app purchases

None

Trgnmtry

No in-app purchases

1 purchases

Graph³

One-time1
  • 3D Graph$0.99

Questions

Is Trgnmtry free?
Pricing for Trgnmtry is not currently listed on the App Store.
Is Graph³ free?
Graph³ costs $0.99, and also offers in-app purchases.
Do Trgnmtry or Graph³ have ads?
Neither Trgnmtry nor Graph³ shows ads.
Which is updated more often, Trgnmtry or Graph³?
Trgnmtry ships an update every 21 months, and Graph³ every 3 weeks. Most recently, Trgnmtry was updated on October 2, 2026 and Graph³ on October 4, 2026.

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