Trgnmtry vs Graph³
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Interactive unit circle
- Visualize trigonometric measures
- Customizable angle intervals
- Supports light and dark mode
- Geometric relation display
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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!
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.
- 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
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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
Verdict
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
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.
| Parameter | Trgnmtry | Graph³ |
|---|---|---|
| Price | — | $0.99 — better |
| Rating | 3.0 (4 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 21 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 17.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Andrew McKnight | Norbert Grieger |
In-app purchases
Trgnmtry
No in-app purchases
Graph³
- 3D Graph$0.99









