SpiroDesigner vs FractRoam
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SpiroDesigner
Create intricate geometric patterns and mathematical curves with this digital spirograph tool. Customize circles, lines, and colors to design unique artwork. Features include saving, exporting, and automatic drawing modes.
- Draw epicycloids and hypotrochoids
- Customize circle radii and line thickness
- Select and edit colors
- Save and export drawings as PNG
- Automatic drawing mode
- Randomize settings
- Tutorial videos
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SpiroDesigner is an app which can draw a beautiful geometrical pattern like the classic toy, SpiroGraph . With this app, you will be able to easily design attractive and complicated works of art. SpiroDesigner is also a good tool to draw a cycloid curve or a trochoid curve which is known in the field of mathematics. Therefore, this app will help mathematical lovers, teachers and students to understand these mathematical figures. FEATURES: - Undo,Redo - Draw epicycloid,hypocycloid,epitrochoid,hypotrochoid - Select radius of circles, line thickness, position of the pen, scale - Select color - Edit curves(rotation, scale, color, line thickness,color) - Save drawing data - Save PNG images to camera roll - Load,Import - Export to iTunes - Automatic drawing mode - Function to randomize settings - Tutorial Videos and many more…
FractRoam
Discover and share stunning fractal art generated from Mandelbrot and Julia sets. Let the app explore autonomously or record and share your discoveries as videos.
- Explore Mandelbrot and Julia sets
- Share fractal images
- Autonomous roaming exploration
- Video recording with ReplayKit
- Share video creations
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FractRoam is a real-time explorer for the Mandelbrot and Julia sets — and its heart is the autopilot. Press play and let it roam: FractRoam continuously seeks out the most visually interesting regions of the fractal and glides you through them, an endless, ever-changing tour you can simply sit back and watch. Want to take the wheel? Pinch and drag to wander on your own, and recolor the whole scene with a tap. Everything is drawn pixel-by-pixel on your device's GPU, in real time. FEATURES • Roam autopilot — hit play and drift through a continuous, auto-discovered tour of the fractal • Real-time Mandelbrot and Julia set rendering, GPU-accelerated and smooth • Pinch and pan to explore yourself, or hand it back to the autopilot anytime • Color moods — six hand-tuned palettes plus animated color cycling • Share any view — a picture plus a link that reopens the exact same spot • Fully offline — no account, no ads, no data collection • A calm, full-screen interface — just you and the fractal Whether you want something mesmerizing to get lost in, a generative-art source for textures and wallpapers, or a hands-on way to explore the math of self-similarity, FractRoam turns the Mandelbrot and Julia sets into something alive. There's a matching macOS screensaver too — find it at fractroam.com.
Screenshots
Verdict
The clearest difference is rating: SpiroDesigner at 5.0 against FractRoam's 4.3. SpiroDesigner also leads on update cadence (every 5 months vs every 29 months) and review sentiment (100% vs 86%). FractRoam's advantage is ratings volume (75 vs 1) and price ($0.99 vs $2.99). On ads and in-app purchases 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
SpiroDesigner costs $2.99 and FractRoam $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
SpiroDesigner holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: FractRoam has 75 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of SpiroDesigner's written reviews are positive against 86% of FractRoam's.
SpiroDesigner ships an update every 5 months, FractRoam every 29 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.
| Parameter | SpiroDesigner | FractRoam |
|---|---|---|
| Price | $2.99 | $0.99 — better |
| Rating | 5.0 (1 ratings) — better | 4.3 (75 ratings) |
| Positive reviews | 100.0% of reviews — better | 86.5% of reviews |
| Number of ratings | 1 | 75 — better |
| Update frequency | Every 5 months — better | Every 29 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 19 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Masahiko Fukuyama | Kaolin Fire |
Customer experience
SpiroDesigner
FractRoam
Bugs and requests
SpiroDesigner
Not enough reviews yet to summarise bugs or requests.
FractRoam
Reported bugs
4 issues- App forces landscape mode
- Low resolution at high zoom
- Fractal recalculation needed
- Zoom limit with pixelation
Requested features
5 requests- Display coordinates and zoom factor
- More control over color palette
- Option for portrait mode
- Adjust colors from a palette
- Add sound track
In-app purchases
SpiroDesigner
No in-app purchases
FractRoam
No in-app purchases








