Trigonometry! vs I Aced Calculus AP Prep
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"!
I Aced Calculus AP Prep
Master single-variable calculus with this comprehensive study companion. It offers flashcards, practice questions, video explanations, and AI assistance to prepare for AP exams or college courses. Study modes and difficulty levels cater to all learners.
- 400+ Smart Flashcards
- 1200+ Practice Questions
- Video Explanations
- AI Assistance
- Spaced Repetition Study Mode
- Calculator Tips
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Master Calculus Anywhere, Anytime Take your Calculus skills to the next level with I Aced Calculus, the ultimate study companion for mastering single-variable Calculus. Whether you're preparing for the AP Calculus AB/BC exams or tackling a college-level course, our app has everything you need to succeed. What You Get: 400+ Smart Flashcards and 1200+ practice questions to make sure you’ve got it down. 9 Comprehensive Deck Lists, including: Calculus Prerequisites Limits and Continuity Derivatives Applications of Differentiation Integrals Applications of Integration Differential Equations Polar, Vector, and Parametric Equations Sequences and Series Bonus Decks with essential cards for the AP exams, and a custom deck feature tailored to your own learning. SPECIAL Features: Video Explanations for most flashcards and select practice questions to break down complex concepts in a digestible way. 3 Study Modes for flashcards: In Order, Shuffled and Spaced repetition. 4 Difficulty Levels for practice questions: Easy, Medium, Hard, and Challenge—perfect for beginners and advanced learners alike. AI Assistance for extra explanation on practice questions. Calculator Tips to boost your TI-84 and TI-Nspire skills. On-the-Go Convenience with clear, concise, and expertly crafted materials designed to help you master Calculus efficiently. What You Pay: FREE Unlimited access to the full Derivatives deck, including all study modes, practice questions, and video explanations. FREE 7-Day access to I Aced Calculus premium, unlocking all 8 calculus decks, AP prep decks, custom deck features, and more. $7.99 per month access to I Aced Calculus premium. $19.99 per 3 months access to I Aced Calculus premium. $35.99 per year access to I Aced Calculus premium. Download I Aced Calculus and follow us on our socials! Website: www.iacedcalculus.com Instagram: @iacedcalculus Facebook: @iacedcalculus YouTube: @iacedcalculus Terms of Use: https://iacedcalculus.com/terms-of-use/ Privacy Policy: https://iacedcalculus.com/privacy-policy/ Apple's Standard License Agreement: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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Verdict
The clearest difference is review sentiment: I Aced Calculus AP Prep at 88% against Trigonometry!'s 14%. I Aced Calculus AP Prep also leads on rating (4.6 vs 2.0) and update cadence (every 2 weeks vs every 4 months). Trigonometry!'s advantage is monetization model (free vs free with in-app purchases) and iOS requirement (9.0 vs 15.0). On price, ads, in-app purchases 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! sells 1 one-off in-app purchase and I Aced Calculus AP Prep sells 3 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.
I Aced Calculus AP Prep holds the better App Store score, 4.6 against 2.0. That said, the two scores are not equally well evidenced: I Aced Calculus AP Prep has 30 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 14% of Trigonometry!'s written reviews are positive against 88% of I Aced Calculus AP Prep's.
Trigonometry! ships an update every 4 months, I Aced Calculus AP Prep every 2 weeks. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.
| Parameter | Trigonometry! | I Aced Calculus AP Prep |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (4 ratings) | 4.6 (30 ratings) — better |
| Positive reviews | 14.3% of reviews | 87.5% of reviews — better |
| Number of ratings | 4 | 30 — better |
| Update frequency | Every 4 months | Every 2 weeks — better |
| 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 | 64 MB |
| Age rating | 4+ | 4+ |
| Developer | AppCrab | I Aced Calculus, LLC |
Customer experience
Trigonometry!
I Aced Calculus AP Prep
In-app purchases
Trigonometry!
- Trigonometry Premium$0.99
I Aced Calculus AP Prep
- Premium - Monthly7 Days trial$7.991 Month
- Premium - 3 Months7 Days trial$19.993 Months
- Premium - Annual7 Days trial$35.991 Year
Questions
Is Trigonometry! free?
Is I Aced Calculus AP Prep free?
Which has better reviews, Trigonometry! or I Aced Calculus AP Prep?
Do Trigonometry! or I Aced Calculus AP Prep have ads?
Which is updated more often, Trigonometry! or I Aced Calculus AP Prep?
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