C++ Q&A vs Calculus
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
C++ Q&A
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Here comes C++ Q&A for your interview, skill knowledge check. If you want to know how much you have about your C++ skills, try this! You have over 150 questions and quickly review whenever you want. This app doesn't have in-app charge so until you confirm your knowledge fully, you can keep using this. Before you go to your C++ engineer interview, or some exam in school, try this so you don't miss your future opportunity.
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
Screenshots
Verdict
The clearest difference is price: Calculus at Free against C++ Q&A's $0.99. Calculus also leads on ads (none vs shown) and update cadence (every 16 months vs every 39 months). C++ Q&A's advantage is in-app purchases (none vs 13) and iOS requirement (13.0 vs 15.0). On 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
Calculus is free to download; C++ Q&A costs $0.99 up front. Calculus sells 13 one-off in-app purchases. C++ Q&A asks for nothing beyond the download.
C++ Q&A ships an update every 39 months, Calculus every 16 months. The most recent releases landed on September 8, 2026 and July 19, 2026 respectively.
| Parameter | C++ Q&A | Calculus |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | — | 3.5 (4 ratings) — better |
| Positive reviews | — | 33.3% of reviews |
| Number of ratings | — | 4 — better |
| Update frequency | Every 39 months | Every 16 months — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 4 MB | 40 MB |
| Age rating | 4+ | 4+ |
| Developer | satoshi goto | Richard Ssenyonjo |
In-app purchases
C++ Q&A
No in-app purchases
Calculus
- Get 1,000 Coins$0.99
- Get 5,000 Coins$1.99
- Get 10,000 Coins$2.99
Show 10 moreShow fewer
- 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 C++ Q&A free?
Is Calculus free?
Do C++ Q&A or Calculus have ads?
Which is updated more often, C++ Q&A or Calculus?
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