Variance vs CppQuiz.org
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Variance
Prepare for quantitative finance interviews with this app. Practice probability, mental math, logic puzzles, and more with detailed solutions and progress tracking. Sharpen your mathematical intuition and problem-solving skills for trading and research roles.
- Probability practice
- Mental math exercises
- Logic puzzles
- Detailed solutions
- Progress tracking
- Topic-specific practice
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Variance is the ultimate quant interview prep app for aspiring traders, quant researchers, and finance professionals. Whether you're targeting a role at a hedge fund, trading firm, or just prepping for fun, Variance gives you the tools to practice the quantitative skills that top firms test — rigorously and on the go. WHAT YOU'LL PRACTICE • Probability • Mental math • Sequences & Patterns • Brainteasers & logic puzzles • Expected value FEATURES • Hundreds of problems across multiple difficulty levels • Detailed solutions and explanations for every question • Topic-by-topic practice to target your weak spots • Progress tracking to see how you improve over time • Clean, distraction-free interface built for focused study WHO IT'S FOR Variance is built for students and professionals preparing for quantitative interviews at top firms, and other top quant shops. It's also great for anyone who wants to sharpen their mathematical intuition and problem-solving speed. Prepare smarter. Interview with confidence. Download Variance today. Terms of Use: www.thequantprepapp.com/terms Privacy Policy: www.thequantprepapp.com/privacy
CppQuiz.org
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Improve your C++ skills by solving quiz questions.
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Verdict
The clearest difference is in-app purchases: CppQuiz.org at none against Variance's 2. CppQuiz.org also leads on iOS requirement (17 vs 26.0). Variance's advantage is update cadence (every 2 weeks vs every 5 weeks). On price, 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. Variance sells 2 in-app purchases, starting at $24.99 per month. CppQuiz.org asks for nothing beyond the download.
Variance ships an update every 2 weeks, CppQuiz.org every 5 weeks. The most recent releases landed on September 30, 2026 and October 7, 2026 respectively.
| Parameter | Variance | CppQuiz.org |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (5 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 2 weeks — better | Every 5 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 26.0 | 17 — better |
| Further details — not scored | ||
| Size | 18 MB | 4 MB |
| Age rating | 12+ | 4+ |
| Developer | Benjamin Kawano | Can Candangelen |
In-app purchases
Variance
- Variance Pro Monthly$24.991 Month
- Variance Pro Yearly$99.991 Year
CppQuiz.org
No in-app purchases
