Federgraph vs FracTree
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Federgraph
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Federgraph is a function plotter app to visualize a special built in function z = f(x, y) in 3D. The physical model behind the app is a system of springs. The built in function produces a variety of colorful pictures, some of which appear to have a face. Changing the parameters of the physical model will trigger a recalculation of the image.
FracTree
Explore the fascinating world of fractal trees with this intuitive iOS app. Experiment with different shapes and appearances using touch gestures and sliders. Save your creations and export them as high-quality images or PDFs.
- Intuitive touch controls for shape manipulation
- Sliders to alter tree appearance
- Manual value input for controls
- Random tree generation
- Save favorite fractal trees
- Export art as PNG, JPG, or PDF
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FracTree is the most "fun" you can have exploring fractal trees on your iOS device! FracTree is a fun and intuitive way to discover the magic of branching and algorithms. Drag, tap, and pinch to find your favorite one! Nifty features: • drag the control targets to easily change the tree shape • use the sliders to alter the tree appearance • tap and double-tap controls to manually enter values • tap the dice for a completely random one; surprise! • save your favorites for later retrieval • export your fractal tree art as png/jpg or resolution-independent pdf • super-handy guide Seriously though, I really dig stuff like this and I hope you'll like it too. That's why I made it!
Screenshots
Verdict
The clearest difference is update cadence: FracTree at every 7 months against Federgraph's every 15 months. FracTree also leads on iOS requirement (9.0 vs 15.0). On price, ads, in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Federgraph ships an update every 15 months, FracTree every 7 months. The most recent releases landed on September 9, 2026 and June 1, 2026 respectively.
| Parameter | Federgraph | FracTree |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Every 15 months | Every 7 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 29 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Gustav Schubert | Jeff Menter |
In-app purchases
Federgraph
No in-app purchases
FracTree
No in-app purchases
