Algebra I Quick Reference vs 3D Rotations and Quaternions
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Algebra I Quick Reference
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Algebra I Quick Reference is a basic information tool for Algebra I students. It provides a simple way to access and review the basic concepts of Algebra I. Here are a few of the ways you will use Algebra I Quick Reference everyday with your students: • Use Algebra I Quick Reference as an informational tool to help students understand and review basic concepts of Algebra I, including the distributive, commutative and associative properties of real numbers, basic techniques for solving equations, rules for exponents, graphing linear functions and factoring. •Tap the areas of the screen to bring up more detailed information and explanations about essential algebra concepts. •Tap to get more information about key topics including variables and expressions, properties of real numbers, solving equations, polynomials, factoring and graphing linear functions. An Interactive Quick Reference Tool Many of the areas of the screen are hot spots. Tap terms and icons to bring up more information about each topic. Topics include: •Variables and Expressions •Properties of Real Numbers •Solving Equations •Polynomials •Factoring and •Graphing Linear Functions
3D Rotations and Quaternions
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3D Rotations and Quaternions is an interactive tool for users who work with 3D orientation math in graphics, roboticsor simulation. It provides precise computations, clean visualizations, and fast conversions between the standard rotation representations. Features include: • Conversion between Euler angles, axis–angle, quaternions, and rotation matrices • Interactive 3D visualization and rotation animation • Quaternion interpolation (LERP and SLERP) • Rotation of user-defined points by user-defined quaternions • Determination of a quaternion that rotates vector v into vector w • Composition of up to 10 sequential quaternion rotations • Quaternion generation from constant angular velocity and time • Reflection of a point across a plane Feedback and suggestions: graphmath@aol.com
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Verdict
The clearest difference is price: 3D Rotations and Quaternions at Free against Algebra I Quick Reference's $0.99. 3D Rotations and Quaternions also leads on update cadence (every 3 weeks vs every 36 months) and device support (3 vs 1). Algebra I Quick Reference's advantage is iOS requirement (12.0 vs 15.0). On 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
3D Rotations and Quaternions is free to download; Algebra I Quick Reference costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Algebra I Quick Reference ships an update every 36 months, 3D Rotations and Quaternions every 3 weeks. The most recent releases landed on October 6, 2026 and October 10, 2026 respectively.
| Parameter | Algebra I Quick Reference | 3D Rotations and Quaternions |
|---|---|---|
| Price | $0.99 | Free — better |
| Update frequency | Every 36 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 4 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Ventura Educational Systems | Yuri Morozov |
In-app purchases
Algebra I Quick Reference
No in-app purchases
3D Rotations and Quaternions
No in-app purchases
Questions
Is Algebra I Quick Reference free?
Is 3D Rotations and Quaternions free?
Do Algebra I Quick Reference or 3D Rotations and Quaternions have ads?
Which is updated more often, Algebra I Quick Reference or 3D Rotations and Quaternions?
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