Trigonometry calc vs Trigonometric Time Attack
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Trigonometry calc
Calculate side lengths and angles in right-angled triangles using Pythagorean theorem and trigonometry functions. Learn basic trigonometry concepts. An optional premium version removes ads and unlocks a general triangle calculator.
- Calculate side lengths
- Calculate angles
- Pythagorean Theorem
- Trigonometry functions
- Learn simple trigonometry
- General triangle calculator (premium)
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Use Trigonometry Calc to calculate sidelengths and angles in the right angled triangle. By the help of Pythagorean Theorem and some trigonometry functions you can in this app calculate side lengths and angles in any right angled triangle. Learn simple trigonometry. •Math •Trigonometry •Pythagorean Theorem Trigonometry Premium Go ad-free forever and unlock the advanced General Triangle Calculator (SAS/SSA/ASA). Solve any triangle, not just right triangles
Trigonometric Time Attack
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From those who want to practice trigonometric functions to teachers who want to introduce them in class and have their students compete. Train with the angles you use most often. Trigonometric functions are displayed. Press the corresponding button. You will be presented with random questions covering the most frequently used angles. You can choose from two types: 0° to 180° and 0° to 360°. You can choose between the degree method and the arc degree method. The achievement status is recorded. It will be recorded according to the number of mistakes and the time taken. The last trophy does not allow even a single mistake. It is very difficult!
Screenshots
Verdict
The clearest difference is in-app purchases: Trigonometric Time Attack at none against Trigonometry calc's 1. On price, update cadence, ads and device support 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. Trigonometry calc sells 1 one-off in-app purchase. Trigonometric Time Attack asks for nothing beyond the download.
Trigonometry calc ships an update every 3 months, Trigonometric Time Attack every 2 months. The most recent releases landed on October 12, 2026 and September 27, 2026 respectively.
| Parameter | Trigonometry calc | Trigonometric Time Attack |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 3 months | Every 2 months — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 10 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | Bo Kalvslund | takamitsu furuya |
In-app purchases
Trigonometry calc
- Premium$0.99
Trigonometric Time Attack
No in-app purchases
Questions
Is Trigonometry calc free?
Is Trigonometric Time Attack free?
Do Trigonometry calc or Trigonometric Time Attack have ads?
Which is updated more often, Trigonometry calc or Trigonometric Time Attack?
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