Comparison

atom.sim vs Vector Field

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

atom.sim

Features
Read full description

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.

About

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.

Highlights
  • 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
Read full description

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

atom.sim4 screens
Vector Field4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

atom.sim ships an update every 6 weeks, Vector Field every 3 months. Both last shipped on October 24, 2026.

Scorecard1 real difference · 9 level
atom.sim versus Vector Field: the parameters behind the verdict, then further details
Parameteratom.simVector Field
PriceFreeFree
Rating—4.5 (6 ratings) — better
Positive reviews—62.5% of reviews
Number of ratings—6 — better
Update frequencyEvery 6 weeks — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS15.015.0
Further details — not scored
Size79 MB1 MB
Age rating4+4+
DeveloperHans KoviEliott Morgensztern

In-app purchases

None

atom.sim

No in-app purchases

None

Vector Field

No in-app purchases

Questions

Is atom.sim free?
atom.sim is free to download, with no in-app purchases.
Is Vector Field free?
Vector Field is free to download, with no in-app purchases.
Do atom.sim or Vector Field have ads?
Neither atom.sim nor Vector Field shows ads.
Which is updated more often, atom.sim or Vector Field?
atom.sim ships an update every 6 weeks, and Vector Field every 3 months. Most recently, atom.sim was updated on October 24, 2026 and Vector Field on October 24, 2026.

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