AngularQM vs Logarithm Rules Calculator
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-.
Logarithm Rules Calculator
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Get your homework done instantly. Prepare for exams stress-free. Free, complete step-by-step solutions. Enter your values and apply logarithm rules. HOW IT WORKS Enter your values into the correct fields and get started. You’ll receive the solution instantly and can share it with friends or classmates. YOUR PERSONAL DATA We don’t need it. Only anonymized data is collected, for example: - which features are used - how many solutions are generated This helps us improve. No conclusions can be drawn about you. COSTS Everything is free to use. 24/7 access to your solutions. All solution steps are always complete. If you need many solutions in a short time, various purchase options are available. EXTRAS - Overview of all calculation rules - Curated learning videos - Feedback on incorrect inputs - Manage your own solutions - App introduction CONTACT Questions and feedback via Discord or directly in the app review.
Screenshots
Verdict
The clearest difference is price: Logarithm Rules Calculator at Free against AngularQM's $4.99. Logarithm Rules Calculator also leads on update cadence (every 3 weeks vs every 49 months) and iOS requirement (15.0 vs 26.4). AngularQM's advantage is in-app purchases (none vs 8). 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
Logarithm Rules Calculator is free to download; AngularQM costs $4.99 up front. Logarithm Rules Calculator sells 8 one-off in-app purchases. AngularQM asks for nothing beyond the download.
AngularQM ships an update every 49 months, Logarithm Rules Calculator every 3 weeks. The most recent releases landed on July 4, 2026 and August 17, 2026 respectively.
| Parameter | AngularQM | Logarithm Rules Calculator |
|---|---|---|
| Price | $4.99 | Free — better |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 49 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 26.4 | 15.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 182 MB |
| Age rating | 4+ | 4+ |
| Developer | Gabriel Raffa | Glindemann, Sennoun, Langer GbR |
In-app purchases
AngularQM
No in-app purchases
Logarithm Rules Calculator
- +30 User Tokens$0.29
- +1 Convenience Token / 6h, max. +2$0.59
- +2 Convenience Tokens / 6h, max. +4$0.99
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- +150 User Tokens$0.99
- +300 User Tokens$1.49
- +4 Convenience Tokens / 6h, max. +8$1.59
- Remove Ads$1.99
- Lifetime Access$1.99
Questions
Is AngularQM free?
Is Logarithm Rules Calculator free?
Do AngularQM or Logarithm Rules Calculator have ads?
Which is updated more often, AngularQM or Logarithm Rules Calculator?
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