AngularQM vs Pic2Mag
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AngularQM
This app helps quantum mechanics physicists quickly obtain matrix representations of angular momentum operators. It calculates matrices for J squared, the z component of J, and ladder operators for chosen total angular momentum values.
- Matrix representation of angular momentum operators
- Calculates J squared matrices
- Calculates Jz component matrices
- Calculates ladder operator matrices (J+, J-)
- Supports various total angular momentum values (j)
- Visualizes matrix representations
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AngularQM is an application for physicists working in quantum mechanics. It allows quickly obtain the matrix representation of the operators involved in the construction of angular momentum in quantum mechanics. Once the total angular momentum of the quantum system under consideration has been chosen (j = 1/2, j = 1, j = 2, etc.) it is possible to calculate the matrices associated with the operator J squared and the z component of operator J. It is also possible to calculate and visualize the matrix representations of the ladder operators: J + and J-.
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.
- 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
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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
Screenshots
Verdict
The clearest difference is price: Pic2Mag at Free against AngularQM's $4.99. Pic2Mag also leads on iOS requirement (8.0 vs 26.4). On rating, ratings volume, update cadence and ads 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
Pic2Mag is free to download; AngularQM costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for AngularQM against 5.0 for Pic2Mag. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
AngularQM ships an update every 49 months, Pic2Mag every 31 months. The most recent releases landed on July 4, 2026 and July 5, 2026 respectively.
| Parameter | AngularQM | Pic2Mag |
|---|---|---|
| Price | $4.99 | Free — better |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Number of ratings | 1 | 1 |
| Update frequency | Every 49 months | Every 31 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 26.4 | 8.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 108 MB |
| Age rating | 4+ | 4+ |
| Developer | Gabriel Raffa | Michael Snyder |
Customer experience
AngularQM
Pic2Mag
In-app purchases
AngularQM
No in-app purchases
Pic2Mag
No in-app purchases
