Feather vs Vortex Diagrams
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Feather
Create stunning 3D artwork from any angle with intuitive tools and a powerful rendering engine. This app allows for seamless navigation, versatile brushes, and advanced editing features, making it ideal for artists and designers to bring their visions to life.
- Intuitive 3D navigation and drawing
- Pressure-sensitive 3D brushes
- 3D Liquify tool for detailed editing
- Post-processing effects and lighting
- Export to 3D formats
- Fully offline functionality
- AR View for real-world placement
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Feather is a next-generation 3D drawing application built for professional designers, visionary artists, and you. Bring your imagination to life with versatile 3D brushes redesigned for space, seamless and intuitive navigation, and a delicate interplay of light and shadow powered by the Airbreath rendering engine. Feather is the ultimate creative space to unleash your ideas without limits. Draw. Rotate. Create. • All you need is a pen and touch. Freely navigate 3D space, draw from any perspective, and turn your ideas into reality. Editing feels like gaming. • Move, rotate, and scale using the joystick. Tedious 3D editing has never been easier. Liquify the space. • Masterpieces arise from many trials. Use "3D Liquify" to push and pull every detail, letting your imagination roam free. Brushes reimagined in 3D. • Enjoy the classic feel of drawing with pressure-sensitive 3D brushes, featuring styles and patterns for enhanced expression. Every angle tells a story. • 3D artworks are meant to be viewed from various angles. Capture and sequence shots to weave your own story. A creative toolkit for artists, designers, architects, and everyone. • Tools unleash your boundless imagination. Feather is for creators who embrace diverse themes, styles, techniques, and dimensions. Polish it up. • Make your creations vibrant with shading and special effects. • Lighting: Illuminate and cast shadows with a single tap. • Post-processing: Add a finishing touch with grain, depth of field, glow, pixelation, or toon shading. Export to 3D formats. • Your 3D creations have no limits. Export your work from Feather, use it in other tools, and explore new workflows. Features you need. Indeed. • Fully Offline: Use anywhere without an internet connection. • Shapes: Draw straight lines, circles, ellipses, and smooth curves. • Eraser: Works just as you expect. • Live Mirror: Draw symmetrical lines with a virtual mirror. • Import Reference: Insert images or 3D models into your workspace. • Clipboard: Display reference images in a separate window. • Background Image: Add colors or images behind your 3D artwork. • AR View: View 3D creations in real-world settings. • Share: Generate a 3D viewer link to share your artwork. • Folders: Organize drawings into folders for easy access. • Geometric Primitives: Draw on spheres, cylinders, cones, or rings. • Data Backup: Back up your files and keep them secure. ... what if you don’t have a pen? • Turn on "Finger-pen" mode to sketch, paint, and edit using just your fingers. Showcase your work. • Feather Gallery is the best place to view and share 3D artworks. Discover what’s possible and find inspiration. Your journey starts here. • From detailed guides to hands-on tutorials, everything you need is at your fingertips. • Documentation: Learn all of Feather's interfaces, gestures, and features. • Basic tutorial: Follow our videos to draw and learn how to use Feather. • Community: Join Feather users from around the world on Discord.
Vortex Diagrams
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Nikola Tesla circled the block three times before entering a building. He chose hotel rooms divisible by three. He believed the numbers 3, 6 and 9 held a key to the universe, and he wasn't entirely wrong about where to look. Double a number, add its digits, and repeat: 1, 2, 4, 8, 7, 5… forever. Three, six and nine never appear. They orbit alone: 3 and 6 trading places, 9 always returning to itself. This is the famous "vortex" pattern, and hidden inside it is something real: the same quiet arithmetic that shapes flower petals, spiral shells, and the rhythm of anything that repeats. Vortex lets you see it. Two dials, a circle of points, and the pattern draws itself before your eyes: hearts, flowers, spirals, webs of light. Change one number and watch an entire universe reorganise. Watch patterns bloom and morph in real time as you turn the dials Start from Tesla's own vortex, or roll the dice into the unknown Five colour worlds, from rainbow to ember to ocean Keep the patterns that speak to you, and give them names Export any pattern as a wallpaper or poster-quality file Beautiful in light and dark Whether you see sacred geometry or simply mathematics drawn honestly, one thing is true: the pattern was always there. Now you can hold it. No accounts. No ads. No data collected.
Screenshots
Verdict
The clearest difference is price: Vortex Diagrams at Free against Feather's $14.99. Feather's advantage is iOS requirement (16.0 vs 18.6). On 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
Vortex Diagrams is free to download; Feather costs $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Feather | Vortex Diagrams |
|---|---|---|
| Price | $14.99 | Free — better |
| Rating | 4.1 (114 ratings) — better | — |
| Positive reviews | 65.0% of reviews | — |
| Number of ratings | 114 — better | — |
| Update frequency | Every 3 weeks | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPad | iPhone, iPad — better |
| Requires iOS | 16.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 49 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Sketchsoft Inc. | Precious Madubuike |
In-app purchases
Feather
No in-app purchases
Vortex Diagrams
No in-app purchases









