A vs Speed Trigonometry
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
A
Create unique geometric shapes through iterative affine transformations. Apply translations, rotations, and scaling to various objects with gradient coloring to generate visually interesting results.
- Affine transformation for shape creation
- Translation, rotation, and scaling
- Gradient coloring
- Supports circles, rectangles, stars, polygons, and lines
- Iterative shape generation
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This app allows you to create interesting shapes using affine transformation. Affine transformation can do translation, rotation and scaling on object's coordinate. We do iterations, and in each iteration we apply the affine transformation on the object (circle, rectangle, star, polygon or line), coloured in gradient. At the end, you may like the result. Have fun.
Speed Trigonometry
This app helps students quickly memorize the unit circle. It quizzes users on sine, cosine, tangent, and inverse trigonometric values for key angles. Developed by students for students, it's ideal for precalculus learners.
- Unit circle memorization
- Quizzes on trig values
- Focus on key angles
- Sine, cosine, tangent, inverse values
- Student-developed
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Speed Trig is the #1 app for memorizing the unit circle fast. Designed for students enrolled in Precalculus, the app quizzes you on the sine, cosine, tangent, and inverse trig values of the four main unit circle angles: π/2, π/3, π/4, and π/6. Our app was made by students, for students.
Screenshots
Verdict
The clearest difference is update cadence: Speed Trigonometry at every 14 months against A's every 70 months. A's advantage is rating (5.0 vs 4.8) and iOS requirement (15.6 vs 18.5). On price, review sentiment, ratings volume and ads 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
A holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 2 and 5 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
A ships an update every 70 months, Speed Trigonometry every 14 months. The most recent releases landed on June 11, 2026 and August 8, 2026 respectively.
| Parameter | A | Speed Trigonometry |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 4.8 (5 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 2 | 5 — better |
| Update frequency | Every 70 months | Every 14 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 18.5 |
| Further details — not scored | ||
| Size | 24 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Johannes Dwiartanto | Nick Petroni |
Customer experience
A
Speed Trigonometry
In-app purchases
A
No in-app purchases
Speed Trigonometry
No in-app purchases
Questions
Is A free?
Is Speed Trigonometry free?
Which has better reviews, A or Speed Trigonometry?
Do A or Speed Trigonometry have ads?
Which is updated more often, A or Speed Trigonometry?
Other comparisons
