AngularQM vs Algebra without Fear
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-.
Algebra without Fear
Master fundamental algebra concepts with unlimited practice problems. This app offers detailed explanations for word problems and unique tools to identify equation types, helping you build confidence in solving equations, factoring, and more.
- Unlimited practice problems
- Word problem solving
- Linear equation solving
- Factoring quadratics
- Quadratic formula
- Built-in calculator
- Factorizer tool
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The Algebra without Fear app helps you gain confidence in your basic algebra skills. The app generates an unlimited number of problems of various types, so you can practice: •Solving word problems. •Solving linear equations. •Solving linear equations by Completing the Square. •Finding the greatest common divisor and least common multiple of two numbers. •Finding the equation for a line. •Finding the distance between two points in the plane. •Finding the midpoint between two points in the plane. •Solving systems of linear equations in 2 variables. •Factoring quadratics. •Finding the roots of a quadratic equation using the Quadratic Formula. Each word problem includes a detailed explanation for how to construct the solution equation. The Reversed Number Problems screen, which is unique to this app, helps you learn how to identify the type of equation you need to use to solve a given word problem. The app allows you to work with numbers in the form of fractions as well as in decimal form. It comes with a built-in Calculator and a Factorizer tool (which will factor any positive integer that can be represented by 10 digits or less into its prime factors). Lots of useful information is included in the FAQ section of the app, which includes articles such as "Why Do I Have to Learn This Stuff?" and "What's the Best Way to Learn Algebra?" There is also an FYI section which contains essays that you might find interesting, such as "Is Algebra a Game?" and "Do Numbers Really Exist?".
Screenshots
Verdict
The clearest difference is update cadence: Algebra without Fear at every 3 weeks against AngularQM's every 49 months. Algebra without Fear also leads on price ($1.99 vs $4.99) and iOS requirement (14.3 vs 26.4). On rating, ratings volume, ads and in-app purchases 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
AngularQM costs $4.99 and Algebra without Fear $1.99 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 Algebra without Fear. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
AngularQM ships an update every 49 months, Algebra without Fear every 3 weeks. The most recent releases landed on July 4, 2026 and September 14, 2026 respectively.
| Parameter | AngularQM | Algebra without Fear |
|---|---|---|
| Price | $4.99 | $1.99 — better |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Number of ratings | 1 | 1 |
| Update frequency | Every 49 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 26.4 | 14.3 — better |
| Further details — not scored | ||
| Size | 5 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Gabriel Raffa | Kal-El Software |
Customer experience
AngularQM
Algebra without Fear
In-app purchases
AngularQM
No in-app purchases
Algebra without Fear
No in-app purchases
Questions
Is AngularQM free?
Is Algebra without Fear free?
Which has better reviews, AngularQM or Algebra without Fear?
Do AngularQM or Algebra without Fear have ads?
Which is updated more often, AngularQM or Algebra without Fear?
Other comparisons
