Mandel Draw vs Stars Units Sizes Objects
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Mandel Draw
Explore the infinite beauty of fractals with this intuitive drawing app. Generate Mandelbrot and Julia sets with numerous functions and color palettes. Enjoy simple touch controls for navigation and advanced settings for high-resolution output and iCloud syncing.
- Mandelbrot and Julia set generation
- 80+ fractal functions
- 20+ color palettes
- Intuitive touch controls (drag, pinch, tap)
- High-resolution output
- iCloud Sync for favorites and palettes
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Mandel Draw is an application that allows you to enjoy fractals, Mandelbrot sets and filled Julia sets, in a fast and comfortable way. The app allows you to draw an infinite number of fractal images from up to 80 different functions, 20+α color palettes, and freely configurable Julia parameters. Operation is simple. Drag to move, pinch to zoom in and out. Double- and triple-tap operations are also available. Convenient settings are also available. - Use DF64 operation: Double the float operation to make it possible to zoom in more. (Disabled in the Appendix 1,2) - Select render version: Two types of rendering methods can be selected. - Display coordinates and magnification: The current coordinates and magnification will be displayed on the screen. - Output detailed information: Add detailed information to the text when sharing. - High-resolution output: Outputs at 4 times the vertical and horizontal resolution when sharing. - iCloud Sync: Share favorites and My Palette with another iPhone or iPad. In addition, all functions are available when unlocked with in-app purchase. 1) All functions are selectable 2) All palettes can be selected 3) Up to 2000 favorites can be saved 4) Maximum number of My Palettes that can be saved is now 30. Now, please enjoy the wonderful and mysterious world of fractals. What is a fractal? Simply put, a fractal is a self-similar figure that does not lose its complexity no matter how much it is enlarged. (Though computers have their limitations.) There are various fractal shapes, such as the Koch curve, Sierpinski's gasket, and Menger's sponge. The Mandelbrot set and the filled Julia set are fractals drawn computationally on the complex plane.
Stars Units Sizes Objects
Explore the vastness of the universe, from the smallest particles to the largest cosmic structures. Compare object sizes, view detailed images, and perform unit conversions across a wide range of astronomical scales. Learn about stars, galaxies, and the incredible distances between them.
- Compare object sizes
- View object images
- Pinch/Zoom and Pan images
- Unit conversion for distances
- Explore scales from Planck length to observable universe
- Learn about stars and galaxies
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Size of the smallest to largest objects and stars. Compare the size of objects in the universe. Object images. Pinch/Zoom image. Pan/Move image. Rotate image. Double tap to reset an image. From the smallest to the largest one. From planck length to observable universe. From Yoctometre, Zeptometre, Attometre, Femtometre, Picometre, Nanometre, Micro, Millimetre, Centimetre, Metre, KiloMetre, Lightyear, Parsecs, Billion Lightyears to 93 Billion Lightyears. Size of objects, particles, atoms, cells, stars and galaxies. Get to know the stars. Get to know the spaces. get to know the universe. How small is this world. How big is the universe. And How great is the creator. How far is the star distance from earth. Two way 18 distance unit conversion. planck length, yoctometer, zeptometer, attometer, femtometer, picometre, nanometre, micrometre, Millimeter, Centimeter, Meter, Kilometer, Inch, Foot, Mile, Astronomical, Lightyear, Parsecs. Perform auto conversion when picker is changed. Share conversion result. Reset unit convertor.
Screenshots
Verdict
The clearest difference is in-app purchases: Stars Units Sizes Objects at none against Mandel Draw's 1. Stars Units Sizes Objects also leads on review sentiment (80% vs 53%) and iOS requirement (11.0 vs 16.0). Mandel Draw's advantage is ads (none vs shown) and update cadence (weekly vs every 4 months). On price 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. Mandel Draw sells 1 one-off in-app purchase. Stars Units Sizes Objects asks for nothing beyond the download.
Mandel Draw holds the better App Store score, 4.5 against 4.2. That said, the two scores are not equally well evidenced: Mandel Draw has 147 ratings behind it against 5, so its average is the more settled of the two. Written reviews complicate that: 53% of Mandel Draw's written reviews are positive against 80% of Stars Units Sizes Objects's, so the app with the better star average is not the one people write more warmly about.
Mandel Draw ships an update weekly, Stars Units Sizes Objects every 4 months. The most recent releases landed on October 18, 2026 and September 22, 2026 respectively.
| Parameter | Mandel Draw | Stars Units Sizes Objects |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (147 ratings) — better | 4.2 (5 ratings) |
| Positive reviews | 53.3% of reviews | 80.0% of reviews — better |
| Number of ratings | 147 — better | 5 |
| Update frequency | Weekly — better | Every 4 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 22 MB | 124 MB |
| Age rating | 4+ | 4+ |
| Developer | Kouji Mori | Mudarmeen Munlin |
Customer experience
Mandel Draw
Stars Units Sizes Objects
In-app purchases
Mandel Draw
- Unlock$1.99
Stars Units Sizes Objects
No in-app purchases
Questions
Is Mandel Draw free?
Is Stars Units Sizes Objects free?
Which has better reviews, Mandel Draw or Stars Units Sizes Objects?
Do Mandel Draw or Stars Units Sizes Objects have ads?
Which is updated more often, Mandel Draw or Stars Units Sizes Objects?
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