Particle Zoo vs Vector Field
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Particle Zoo
Explore the fundamental building blocks of the universe with this pocket guide to subatomic particles. Learn about the diverse particles that constitute matter and energy, inspired by a popular plush toy collection.
- Subatomic particle information
- Pocket-sized reference
- Educational tool
- Inspired by plush toys
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Would you like to get to know the particles that make up our universe a little better? Then carry this convenient list of subatomic particles in your pocket! Based on The Particle Zoo plushies.
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.
Screenshots
Verdict
The clearest difference is rating: Vector Field at 4.5 against Particle Zoo's 3.9. Particle Zoo's advantage is update cadence (every 3 weeks vs every 3 months) and ratings volume (48 vs 6). On price, ads, in-app purchases and monetization model 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.
Vector Field holds the better App Store score, 4.5 against 3.9. That said, the two scores are not equally well evidenced: Particle Zoo has 48 ratings behind it against 6, so its average is the more settled of the two. Written reviews complicate that: 81% of Particle Zoo's written reviews are positive against 73% of Vector Field's, so the app with the better star average is not the one people write more warmly about.
Particle Zoo ships an update every 3 weeks, Vector Field every 3 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.
| Parameter | Particle Zoo | Vector Field |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (48 ratings) | 4.5 (6 ratings) — better |
| Positive reviews | 81.1% of reviews — better | 72.7% of reviews |
| Number of ratings | 48 — better | 6 |
| Update frequency | Every 3 weeks — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 11.1 — better | 15.0 |
| Further details — not scored | ||
| Size | 14 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | rickbdotcom LLC | Eliott Morgensztern |
Customer experience
Particle Zoo
Vector Field
Bugs and requests
Particle Zoo
Reported bugs
6 issues- Links don't work
- App no longer works on older iOS versions (iOS 11, iOS 6)
- Higgs Boson listed as theoretical
- Some buttons do not work
- App crashes on older devices
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- List scrolls to the top when selecting a particle
Requested features
9 requests- Add more particles (Build A Baryon, etc.)
- Animate the critters
- Bring back removed features (Build A Baryon, beta decay simulator)
- Update Higgs Boson information
- Add more interactions (strong, electromagnetic)
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- More in-depth information on particles
- Fix navigation bugs (list scrolling)
- Add space time content
- Make critters animated
Vector Field
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Particle Zoo
No in-app purchases
Vector Field
No in-app purchases
