The Periodic Table HD vs AngularQM
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
The Periodic Table HD
Explore a color-coded periodic table with detailed information on each element. Access data like atomic number, density, and electronic configuration. This educational tool is available for free.
- Color-coded periodic table
- Element details (name, density, etc.)
- Atomic number
- Melting point
- Electronic configuration
- Free to use
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A color coded periodic table of elements that includes the name, density, electronic configuration, atomic number, melting point and much more of the elements! The best part is that its free!
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-.
Screenshots
Verdict
The clearest difference is price: The Periodic Table HD at Free against AngularQM's $4.99. The Periodic Table HD also leads on update cadence (every 3 months vs every 49 months) and ratings volume (25 vs 1). AngularQM's advantage is rating (5.0 vs 3.6) and ads (none vs shown). On 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
The Periodic Table HD is free to download; AngularQM costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
AngularQM holds the better App Store score, 5.0 against 3.6. That said, the two scores are not equally well evidenced: The Periodic Table HD has 25 ratings behind it against 1, so its average is the more settled of the two.
The Periodic Table HD ships an update every 3 months, AngularQM every 49 months. The most recent releases landed on September 8, 2026 and July 4, 2026 respectively.
| Parameter | The Periodic Table HD | AngularQM |
|---|---|---|
| Price | Free — better | $4.99 |
| Rating | 3.6 (25 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 25 — better | 1 |
| Update frequency | Every 3 months — better | Every 49 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported — better | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 26.4 |
| Further details — not scored | ||
| Size | 6 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | John Rouda | Gabriel Raffa |
Customer experience
The Periodic Table HD
AngularQM
In-app purchases
The Periodic Table HD
No in-app purchases
AngularQM
No in-app purchases
Questions
Is The Periodic Table HD free?
Is AngularQM free?
Which has better reviews, The Periodic Table HD or AngularQM?
Do The Periodic Table HD or AngularQM have ads?
Which is updated more often, The Periodic Table HD or AngularQM?
Other comparisons
