Trigonometry! vs Calculus
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Trigonometry!
Master trigonometry with this comprehensive mobile helper. It offers a textbook, visual explanations, and video lessons covering all essential formulas and theorems. Prepare for your exams with detailed content and easy-to-understand explanations.
- Ordered set of basic formulas and theorems
- 172 video lessons
- Easy-to-read and understand textbook
- Covers major trigonometry topics
- Visual explanations
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Are your trigonometry exam at the corner? Our app will rescue you! "Trigonometry" is your personal helper that provides you with all information required. Can you just imagine that with the help of one mobile app you can easily learn trig reviewing the textbook provided, observing visual explanations and watching video lessons?! Downloading our app you get: ▶ FORMULAS • Ordered set of basic formulas and theorems that can only be applied in the frameworks of this course • Needed comments and explanations are given ▶ 172 VIDEO LESSONS ▶ TEXTBOOK • It covers major topics • Textbook is easy-to-read and easy-to-understand • The book divided into: - Right Triangle Trigonometry - Angles - Trigonometric Functions of an Acute Angle - Applications and Solving Right Triangles - Trigonometric Functions of Any Angle - Rotations and Reflections of Angles - General Triangles - The Law of Sines - The Law of Cosines - The Law of Tangents - The Area of a Triangle - Circumscribed and Inscribed Circles - Identities - Trigonometric Identities - Sum and Difference Formulas - Double-Angle and Half-Angle Formulas - Other Identities - Radian Measure - Radians and Degrees - Arc Length - Area of a Sector - Circular Motion: Linear and Angular Speed - Graphing and Inverse Functions - Graphing the Trigonometric Functions - Properties of Graphs of Trigonometric Functions - Inverse Trigonometric Functions - Solving Trigonometric Equations - Numerical Methods in Trigonometry - Complex Numbers - Polar Coordinates Stop being scared, download "Trigonometry"!
Calculus
Learn calculus comprehensively through 10 chapters and reinforce your understanding with an interactive quiz game. This app caters to both beginners and advanced learners, offering hints and challenging problems. Enjoy a clear, adaptable interface with font size adjustments and light/dark mode support.
- 10-chapter calculus curriculum
- Interactive calculus quiz game
- Beginner to advanced learning paths
- Adjustable font size
- Light and dark mode support
- Covers differentiation, integration, and differential equations
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Study Calculus from A to Z in 10 chapters, all in one app! Then play the in-app Calculus Quiz game to perfect your skills. One Level builds the necessary knowledge for the next Level as you advance. - Suitable for BEGINNERS: Teach yourself Calculus from Zero to the level of a Pro using the HINTS provided. - Adequate for the PROs: Revise and consolidate your Calculus knowledge while facing off with real Pure Math challenges. - Enjoy crisp clear Math text that adjusts its Font size and adapts to both Light and Dark Mode. Featured topics: - Differentiation 1: Curve gradient, Tangents and Normals, Velocity and Acceleration - Differentiation 2: Maxima and Minima, Curve sketching, Second derivative, Small changes - Integration: Reverse differentiation, Area under a curve, Definite integrals, Solids of Revolution, Centres of gravity - Further differentiation: Chain rule, Products and Quotients, Implicit functions, Parameters, Second derivatives - Trigonometry: Radian measure, Trigonometry derivatives, Inverse trigonometry, General solutions - Further Integration 1: Function and derivative, Change of variable, Parameters, Inverse trigonometry - Exponential and Log functions: The exponential function, Deriving y = e^x, The natural logarithm, Logarithmic differentiation - Partial fractions: Linear factors, Quadratic factors, Repeated roots, Improper fractions - Further Integration 2: Integration by parts, Taking dv/dx as 1, Variable t = tan(x/2), Splitting the numerator - Differential equations: Separating variables, Integrating factor, Homogenous equations, Differential problems
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Verdict
The clearest difference is rating: Calculus at 3.5 against Trigonometry!'s 2.0. Calculus also leads on review sentiment (33% vs 14%). Trigonometry!'s advantage is monetization model (free vs free with in-app purchases) and update cadence (every 4 months vs every 16 months). On price, ratings volume, 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
Both are free to download. Trigonometry! sells 1 one-off in-app purchase and Calculus sells 13 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Calculus holds the better App Store score, 3.5 against 2.0. Both are backed by a comparable volume of ratings — 4 and 4 respectively. Written reviews point the same way: 14% of Trigonometry!'s written reviews are positive against 33% of Calculus's.
Trigonometry! ships an update every 4 months, Calculus every 16 months. The most recent releases landed on September 18, 2026 and July 19, 2026 respectively.
| Parameter | Trigonometry! | Calculus |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (4 ratings) | 3.5 (4 ratings) — better |
| Positive reviews | 14.3% of reviews | 33.3% of reviews — better |
| Number of ratings | 4 | 4 |
| Update frequency | Every 4 months — better | Every 16 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 29 MB | 40 MB |
| Age rating | 4+ | 4+ |
| Developer | AppCrab | Richard Ssenyonjo |
Customer experience
Trigonometry!
Calculus
In-app purchases
Trigonometry!
- Trigonometry Premium$0.99
Calculus
- Get 1,000 Coins$0.99
- Get 5,000 Coins$1.99
- Get 10,000 Coins$2.99
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- Unlock Calculus 1$2.99
- Unlock Calculus 2$2.99
- Unlock Calculus 3$2.99
- Unlock Chapter 5$2.99
- Unlock Calculus 8$2.99
- Unlock Calculus 9$2.99
- Unlock Calculus 4$2.99
- Unlock Calculus 6$2.99
- Unlock Calculus 7$2.99
- Unlock Calculus 10$2.99
Questions
Is Trigonometry! free?
Is Calculus free?
Which has better reviews, Trigonometry! or Calculus?
Do Trigonometry! or Calculus have ads?
Which is updated more often, Trigonometry! or Calculus?
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