atom.sim vs Vector Field
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
atom.sim
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A simulation of the anatomy of atoms. This app shows the first 18 atoms in 3d detail, provides info about the anatomy of these atoms and shows how empty an atom is. Ideal for students in mid school and high school.
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 update cadence: atom.sim at every 6 weeks against Vector Field's every 3 months. On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
atom.sim ships an update every 6 weeks, Vector Field every 3 months. Both last shipped on October 24, 2026.
| Parameter | atom.sim | Vector Field |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.5 (6 ratings) — better |
| Positive reviews | — | 62.5% of reviews |
| Number of ratings | — | 6 — better |
| Update frequency | Every 6 weeks — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 79 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Hans Kovi | Eliott Morgensztern |
In-app purchases
atom.sim
No in-app purchases
Vector Field
No in-app purchases









