Calculus vs Oyila Prep
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calculus
Learn calculus through interactive animations, step-by-step worked examples, and instantly graded practice problems. Explore math history and track your mastery of concepts with spaced review. Offers a comprehensive path for first-year calculus courses.
- Interactive concept animations
- Worked examples with hints
- Instantly graded practice problems
- Math history stories
- Mistake tracking and mastery
- Spaced review
- Daily micro-experiments
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Calculus you can see is calculus you can learn. Calculus: Learn & Practice turns a full first-year calculus course into one clear path: build intuition with an interactive animation, follow a worked example step by step, then prove to yourself you've got it with instantly graded practice. WHAT'S INSIDE • 111 interactive concept animations — play, scrub and watch the key change happen instead of imagining it • 336 worked examples with complete solutions, visual hints and the mistakes students usually make • 1,246 practice problems graded the moment you submit, each with a full solution • Math-history stories with the original problems: Zeno's paradoxes, Archimedes' π, Fermat and Descartes' fight over tangents • Mistake tracking and mastery per concept, so you know exactly what to review • Spaced review that brings a topic back right before you'd forget it • Study Desk: a 2-minute micro-experiment every day, a Lab Notebook for your own conjectures, and a library of 219 counterexamples • A searchable library of 12 chapters, filterable by topic, tag and difficulty TOPICS COVERED • Limits and continuity • Derivatives and differentials • Applications of derivatives — optimization, related rates, MVT, curve sketching, L'Hôpital's rule, Taylor polynomials • Integrals — FTC, substitution, integration by parts, partial fractions, improper integrals • Applications of integration — area, volume, arc length, work • Differential equations • Infinite series — convergence tests, power series, Taylor and Fourier series • Multivariable differential calculus — partial derivatives, gradient, tangent planes, Lagrange multipliers • Vectors and 3D analytic geometry • Multiple integrals — double and triple integrals, cylindrical and spherical coordinates • Line and surface integrals — Green's, divergence and Stokes' theorems Great for Calculus I, II and III, AP Calculus AB/BC review, and exam prep. TRY IT FIRST Chapter 1 is completely free — animations, examples and practice all work, no time limit and no account. To unlock every chapter, choose Calculus Pro: a monthly or yearly auto-renewable subscription, or a one-time lifetime purchase. No ads. Works on iPhone, iPad and Mac. SUBSCRIPTION DETAILS Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in Settings > Apple Account > Subscriptions. Prices are shown in the app before you buy. Your progress stays on your device. Purchases are handled securely by Apple and can be restored anytime. Every lesson, example and problem is available in English, Spanish, French, German, Italian, Portuguese, Japanese, Korean, Arabic, Hindi and Chinese. Privacy: https://vaca.vip/advancedmathematics/en/privacy Support: https://vaca.vip/advancedmathematics/en/support Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Oyila Prep
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Oyila Prep helps students build confidence in maths through focused revision, practice, and clear explanations. Study WAEC and UK GCSE maths topics, work through past-paper questions, track your progress, and return to the areas that need more attention. Use the AI Tutor for step-by-step learning support, scan or import questions for practice, and keep your study activity in one place. Oyila Prep is designed to support your learning — it does not replace your teacher, school, or exam-board rules. Features include: - WAEC and UK GCSE maths revision and practice - Past-paper and topic-based questions - Personal study progress and review - AI Tutor explanations and guided help - Question scanning and imports - Secure account, subscription, and support tools Support: support@oyilaprep.com Privacy Policy: https://oyilaprep.com/privacy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: Calculus at every 2 days against Oyila Prep's fortnightly. Oyila Prep's advantage is iOS requirement (15.0 vs 17.6). 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. Calculus sells 4 in-app purchases, starting at $1.99 per month and Oyila Prep sells 4 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.
Calculus ships an update every 2 days, Oyila Prep fortnightly. The most recent releases landed on November 9, 2026 and October 31, 2026 respectively.
| Parameter | Calculus | Oyila Prep |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 days — better | Fortnightly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Requires iOS | 17.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 111 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | 光浩 李 | CLOUDPILAR LIMITED |
In-app purchases
Calculus
- Calculus Pro Monthly$1.991 Month
- Calculus Pro Yearly$9.991 Year
- Unlock All Chapters$9.99
- Calculus Pro Lifetime$19.99
Oyila Prep
- Silver Monthly$7.991 Month
- Gold Monthly$11.991 Month
- Silver Yearly$79.991 Year
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- Gold Yearly$119.001 Year









