Comparison

Pic2Mag vs Pendulum Lab

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

Head to head
About

Pic2Mag

Visualize magnetic and electric fields by drawing magnets or charges. This educational tool helps students understand physics concepts by displaying field lines and voltage potentials. It offers a free, ad-free learning experience for iOS devices.

Highlights
  • Draw magnets to visualize magnetic fields
  • Draw charges to visualize electric fields
  • Magnetostatic and Electrostatic modes
  • Field line and voltage potential plotting
  • Caches results for faster processing
  • Ad-free learning experience
Features
Read full description

The user draws the magnets and the Pic2Mag program draws the magnetic fields. The Field Calculator program now has a Magnetostatic mode, and an Electrostatic mode to plot either magnetic fields or electric fields. The program designed to help students learn Magnetic fields and Electric fields. You can draw magnets and look at the magnetic field, or you can draw electric charges and look at the electric voltage field. The best free magnetic science program you can download! No advertisements, it's just all app. The app can process most images in just a few minutes. The app caches it's results so the more that you use it, the faster the program processes images. Red pixels represent magnets with a North pole surface facing the observer, and Blue pixels represent magnets with a South pole surface facing the observer. Pink pixels represent positive electric charges, and Dark Purple pixels represent negative electric charges

About

Pendulum Lab

Features
Read full description

PendulumLab: Interactive Pendulum Physics Simulator Dive into the fascinating world of pendulum physics with PendulumLab! Whether you're a student, educator, or science enthusiast, this app brings the beauty and complexity of pendulum motion right to your fingertips. Key Features: Explore single, double, and triple pendulum systems Interact with real-time, visually stunning simulations Adjust parameters like length, angle, and gravity to see instant effects Visualize pendulum trajectories with customizable trails Toggle trajectory visibility for each pendulum bob Clear trajectories with a single tap for new experiments Perfect for: Students learning about harmonic motion and chaos theory Teachers demonstrating complex physics concepts Science enthusiasts curious about pendulum behavior Anyone fascinated by the interplay of physics and visual art Why PendulumLab? Intuitive controls make learning physics fun and accessible High-quality graphics provide a clear view of pendulum dynamics Real-time parameter adjustments allow for instant experimentation Trajectory visualization helps understand the complexity of multi-pendulum systems Unlock the secrets of pendulum motion, from simple harmonic oscillations to chaotic behavior. PendulumLab turns your device into a powerful physics laboratory, letting you explore, learn, and marvel at the wonders of motion. Download PendulumLab now and start your journey into the mesmerizing world of pendulum physics!

Screenshots

Pic2Mag4 screens
Pendulum Lab3 screens

Verdict

The call

The clearest difference is price: Pic2Mag at Free against Pendulum Lab's $0.99. Pic2Mag also leads on in-app purchases (none vs 1) and iOS requirement (8.0 vs 15.0). Pendulum Lab's advantage is update cadence (every 5 weeks vs every 31 months). On ads 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

Pic2Mag is free to download; Pendulum Lab costs $0.99 up front. Pendulum Lab sells 1 one-off in-app purchase. Pic2Mag asks for nothing beyond the download.

UpkeepUpdate frequency

Pic2Mag ships an update every 31 months, Pendulum Lab every 5 weeks. The most recent releases landed on October 8, 2026 and October 4, 2026 respectively.

Scorecard4 real differences · 5 level
Pic2Mag versus Pendulum Lab: the parameters behind the verdict, then further details
ParameterPic2MagPendulum Lab
PriceFree — better$0.99
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 31 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS8.0 — better15.0
Further details — not scored
Size108 MB4 MB
Age rating4+4+
DeveloperMichael Snyderhyeonsu jeong

In-app purchases

None

Pic2Mag

No in-app purchases

1 purchases

Pendulum Lab

One-time1
  • Triple Pendulum Unlock$0.99

Questions

Is Pic2Mag free?
Pic2Mag is free to download, with no in-app purchases.
Is Pendulum Lab free?
Pendulum Lab costs $0.99, and also offers in-app purchases.
Do Pic2Mag or Pendulum Lab have ads?
Neither Pic2Mag nor Pendulum Lab shows ads.
Which is updated more often, Pic2Mag or Pendulum Lab?
Pic2Mag ships an update every 31 months, and Pendulum Lab every 5 weeks. Most recently, Pic2Mag was updated on October 8, 2026 and Pendulum Lab on October 4, 2026.

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