Periodic Table Question Bank vs Speed Trigonometry
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Periodic Table Question Bank
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Learn and test your chemistry skills with the Periodic Table Question Bank! Challenge yourself with quizzes on element names, symbols, atomic numbers, and properties. Perfect for students, teachers, and anyone curious about chemistry!
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.
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Verdict
The clearest difference is price: Speed Trigonometry at Free against Periodic Table Question Bank's $0.99. Speed Trigonometry also leads on update cadence (every 14 months vs every 36 months). On ads, in-app purchases, device support and iOS requirement 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
Speed Trigonometry is free to download; Periodic Table Question Bank costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Periodic Table Question Bank ships an update every 36 months, Speed Trigonometry every 14 months. The most recent releases landed on October 27, 2026 and October 7, 2026 respectively.
| Parameter | Periodic Table Question Bank | Speed Trigonometry |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | — | 4.8 (5 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 5 — better |
| Update frequency | Every 36 months | Every 14 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.2 — better | 18.5 |
| Further details — not scored | ||
| Size | 2 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Prachi Pimpalkhare | Nick Petroni |
In-app purchases
Periodic Table Question Bank
No in-app purchases
Speed Trigonometry
No in-app purchases
Questions
Is Periodic Table Question Bank free?
Is Speed Trigonometry free?
Do Periodic Table Question Bank or Speed Trigonometry have ads?
Which is updated more often, Periodic Table Question Bank or Speed Trigonometry?
Other comparisons
