Comparison

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.

Head to head
About

Algebra I Quick Reference

Features
Read full description

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

About

3D Rotations and Quaternions

Features
Read full description

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

Screenshots

3D Rotations and Quaternions4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

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.

Scorecard4 real differences · 2 level
Algebra I Quick Reference versus 3D Rotations and Quaternions: the parameters behind the verdict, then further details
ParameterAlgebra I Quick Reference3D Rotations and Quaternions
Price$0.99Free — better
Update frequencyEvery 36 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
DevicesiPadiPhone, iPad, iPod — better
Requires iOS12.0 — better15.0
Further details — not scored
Size4 MB1 MB
Age rating4+4+
DeveloperVentura Educational SystemsYuri Morozov

In-app purchases

None

Algebra I Quick Reference

No in-app purchases

None

3D Rotations and Quaternions

No in-app purchases

Questions

Is Algebra I Quick Reference free?
Algebra I Quick Reference costs $0.99, with no in-app purchases.
Is 3D Rotations and Quaternions free?
3D Rotations and Quaternions is free to download, with no in-app purchases.
Do Algebra I Quick Reference or 3D Rotations and Quaternions have ads?
Neither Algebra I Quick Reference nor 3D Rotations and Quaternions shows ads.
Which is updated more often, Algebra I Quick Reference or 3D Rotations and Quaternions?
Algebra I Quick Reference ships an update every 36 months, and 3D Rotations and Quaternions every 3 weeks. Most recently, Algebra I Quick Reference was updated on October 6, 2026 and 3D Rotations and Quaternions on October 10, 2026.

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