Vector Field vs golnar
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Vector Field
Visualize mathematical vector fields with animated particles in 2D, 3D, or spherical spaces. Input custom equations and adjust simulation parameters in real-time to explore dynamical systems and mathematical patterns interactively.
- 2D, 3D, and spherical vector field visualization
- Customizable dx, dy, dz equations
- Adjustable particle speed, density, and colors
- Time-dependent field animation
- Interactive 3D view rotation
- Real-time rendering powered by Metal
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Vector Field lets you create and visualize mathematical vector fields with thousands of animated particles. Enter your own equations, adjust the simulation instantly, and watch how particles move through 2D, 3D, or spherical spaces. Whether you are studying differential equations, experimenting with dynamical systems, teaching vector calculus, or simply exploring mathematical patterns, Vector Field turns equations into interactive motion. Features: • Visualize vector fields in 2D, 3D, and on a sphere • Define custom dx, dy, and dz equations using x, y, z, and time t • Use built-in function presets or save your own • Adjust particle speed, density, lifetime, colors, and ranges • Animate time-dependent fields • Normalize vectors to focus on direction • Rotate 3D views interactively • Powered by Metal for smooth real-time rendering • Create, tweak, and discover vector fields directly from your device.
golnar
Explore the rich history and artistry of handmade Persian rugs. Identify origins, decode intricate motifs, understand materials, and master weaving techniques. Test your knowledge with a built-in quiz.
- Identify rug origins by region
- Decode symbolic motifs
- Understand materials like wool and silk
- Learn weaving techniques
- Test knowledge with a quiz
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golnar transforms the way you see a handmade Persian rug. Ever held a rug and wondered where it came from, who made it, or what its patterns mean? golnar gives you the knowledge to find out. ◆ IDENTIFY ORIGINS Learn to recognize rugs by region, from tribal nomadic weavings to the great weaving cities of Iran. ◆ DECODE MOTIFS Discover the meaning behind symbols, flowers, animals, and geometric patterns woven into every rug. ◆ UNDERSTAND MATERIALS Explore wool, silk, and cotton and what they reveal about a rug's quality and origin. ◆ MASTER TECHNIQUES Learn knot types, weaving structures, and the craftsmanship that separates an extraordinary rug from an ordinary one. ◆ TEST YOURSELF Take the built-in quiz and discover how much you really know about Persian rugs. Whether you just inherited a family heirloom, bought your first antique rug, or have admired Persian rugs for years, golnar is the mentor in your pocket you never had. Beautiful, visual, and crafted with the same care as the rugs it celebrates.
Screenshots
Verdict
The clearest difference is rating: golnar at 5.0 against Vector Field's 4.5. golnar also leads on update cadence (every 8 days vs every 3 months). Vector Field's advantage is device support (4 vs 1) and iOS requirement (15.0 vs 26.1). On price, ratings volume, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
golnar holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 6 and 3 respectively.
Vector Field ships an update every 3 months, golnar every 8 days. The most recent releases landed on October 4, 2026 and October 9, 2026 respectively.
| Parameter | Vector Field | golnar |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (6 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 62.5% of reviews | — |
| Number of ratings | 6 — better | 3 |
| Update frequency | Every 3 months | Every 8 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone |
| Requires iOS | 15.0 — better | 26.1 |
| Further details — not scored | ||
| Size | 1 MB | 217 MB |
| Age rating | 4+ | 4+ |
| Developer | Eliott Morgensztern | Atousa Design LLC |
Customer experience
Vector Field
golnar
In-app purchases
Vector Field
No in-app purchases
golnar
No in-app purchases









