Comparison

xFractal vs GT Graph

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

Head to head
About

xFractal

Explore the intricate beauty of fractals with real-time GPU rendering. Zoom infinitely into the Mandelbrot and Julia sets, discover various fractal types, and enjoy smooth coloring with multiple palettes. Replay your explorations as animated movies.

Highlights
  • Mandelbrot, Julia, Newton, and Multibrot fractals
  • Deep zoom capabilities
  • Multiple classic color palettes
  • Julia presets and Multibrot exponents
  • Exploration replay as animated movie
  • Cross-device continuity
Features
Read full description

Explore the infinite beauty of fractals with your fingertips. Pinch to zoom, drag to pan, and dive into the endless detail of the Mandelbrot set and its relatives โ€” rendered in real time on your device's GPU. xFractal, first released in 2008, is back โ€” rebuilt from the ground up for today's iPhone and iPad. FEATURES: โ€ข Mandelbrot, Julia, Newton and Multibrot fractals โ€ข Deep zoom: magnify the Mandelbrot and Julia sets more than a trillion times โ€ข Four classic palettes โ€” Hot, Cold, Gray and Chromatic โ€” with smooth coloring โ€ข Julia presets (Dendrite, Spiral, Rabbit, Galaxy, San Marco), Multibrot exponents 2โ€“8, three Newton polynomials โ€ข Replay: watch your whole exploration animate back as a short movie โ€ข Picks up exactly where you left off โ€ข Free and open source Deep zoom uses K. I. Martin's perturbation technique.

About

GT Graph

Read full description

GT Graph transforms your device into a powerful mathematical visualization tool. Plot equations, explore calculus concepts, and bring mathematics to life with stunning interactive graphs. PLOT ANY EQUATION - Cartesian functions - Polar curves - Parametric equations - Implicit equations - Inequalities with shaded regions INTUITIVE INPUT Type equations naturally with implicit multiplication support. Write 2x instead of 2*x, or 2sin(x) instead of 2*sin(x). GT Graph understands mathematical notation the way you write it. COMPREHENSIVE FUNCTION LIBRARY - Trigonometric: sin, cos, tan, sec, csc, cot - Inverse trigonometric: asin, acos, atan - Hyperbolic: sinh, cosh, tanh - Exponential and logarithmic: exp, ln, log, log2 - Power functions: sqrt, cbrt, abs - Constants: pi, e, phi (golden ratio) MULTIPLE GRID TYPES - Standard Cartesian grid - Trigonometric grid with pi-labeled axes - Polar coordinate grid with radial lines - Logarithmic scale grid CALCULUS TOOLS - Calculate derivatives at any point - Compute definite integrals with visual shading - Find zeros (roots) of functions - Locate local minima and maxima - Generate value tables INTERACTIVE EXPLORATION - Pinch to zoom, drag to pan - Tap to show tangent lines - Crosshair cursor displays coordinates - Plot multiple equations simultaneously - Color-coded graphs for easy identification SAVE AND SHARE - Save your work as .gtgraph files - Export and share with colleagues - Equation history saves your last 25 entries - Settings persist between sessions Perfect for: - Students learning algebra, trigonometry, and calculus - Teachers creating visual demonstrations - Engineers and scientists visualizing data - Anyone curious about mathematical beauty GT Graph combines the power of professional graphing software with the elegance of modern design. Start plotting today!

Screenshots

xFractal4 screens
GT Graph4 screens

Verdict

The call

The clearest difference is in-app purchases: xFractal at none against GT Graph's 1. GT Graph's advantage is update cadence (every 8 days vs every 6 weeks). On price, ads, device support and iOS requirement there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. GT Graph sells 1 one-off in-app purchase. xFractal asks for nothing beyond the download.

UpkeepUpdate frequency

xFractal ships an update every 6 weeks, GT Graph every 8 days. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

Scorecard2 real differences ยท 6 level
xFractal versus GT Graph: the parameters behind the verdict, then further details
ParameterxFractalGT Graph
PriceFreeFree
Positive reviews71.4% of reviewsโ€”
Update frequencyEvery 6 weeksEvery 8 days โ€” better
AdsNoNo
In-app purchasesNo โ€” betterYes
MonetizationFreeโ€”
DevicesiPhone, iPad, MaciPhone, iPad, Mac
Requires iOS17.0 โ€” better18.0
Further details โ€” not scored
Size9 MB1 MB
Age rating4+4+
DeveloperJean BovetGennaro Eduardo Tangari

In-app purchases

None

xFractal

No in-app purchases

1 purchases

GT Graph

One-time1
  • GT Graph In-App Purchase$0.99

Questions

Is xFractal free?
xFractal is free to download, with no in-app purchases.
Is GT Graph free?
GT Graph is free to download, with in-app purchases available.
Do xFractal or GT Graph have ads?
Neither xFractal nor GT Graph shows ads.
Which is updated more often, xFractal or GT Graph?
xFractal ships an update every 6 weeks, and GT Graph every 8 days. Most recently, xFractal was updated on October 30, 2026 and GT Graph on October 28, 2026.

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