Devmaxx vs QuantDojo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Devmaxx
This app provides a daily system design question to help software engineers master essential skills for interviews and career growth. It offers clear explanations, linked resources, and a private community for learning and practice.
- Daily system design questions
- Clear explanations and answer breakdowns
- Linked learning resources
- Access to previous questions
- Private developer community
- Progress tracking
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System design is becoming one of the most important skills for software engineers. Many companies now require a dedicated system design interview, and your career growth often depends on your ability to design large-scale systems. Devmaxx gives you one focused system design question every day across databases, infrastructure, APIs, theory, and product to help you learn these skills and stay sharp. Each question takes about two minutes, and includes a resource to learn more about the subject. What you’ll get: • A new system design question daily • Clear explanations for every answer • Breakdown of the correct answer • Access to previous questions • Linked resources to go deeper • Access to a private community of developers learning and building the same things as you • Progress tracking to monitor growth If you’re preparing for interviews, this builds daily momentum. If you’re already working as an engineer, this keeps your fundamentals sharp. Open the app. Answer one question. Land the offer. * All features described above require a subscription Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
QuantDojo
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QuantDojo is the only app built specifically for quant finance interview prep. 1,300+ brain teasers and growing, covering every question type you'll face at top firms. WHAT YOU GET • 1,300+ brain teasers across Probability, Statistics, Combinatorics, Logic, and Game Theory • Questions tagged by firm — Jane Street, Citadel, Two Sigma, DE Shaw, Optiver, SIG, HRT, IMC, and more • 3 progressive hints per question to guide your thinking • Full step-by-step solutions with mathematical explanations • Spaced repetition to lock in what you've learned • Track your accuracy by category and difficulty HOW IT WORKS Pick a category, difficulty, or target firm and start solving. Reveal hints when you're stuck. Check the full solution when you're ready. Mark questions as solved or send them to your review queue. QuantDojo tracks your weak spots and resurfaces questions at the right intervals. WHO IT'S FOR • Students prepping for quant interviews • Career switchers moving into quant finance • Working professionals staying sharp PRICING Subscribe monthly or annually, or get lifetime access with a single purchase. Free users can preview 3 full solutions before subscribing. Privacy: All your data stays on your device. We collect nothing. Terms of Use: https://elilindt.github.io/quantdojo-site/terms.html Privacy Policy: https://elilindt.github.io/quantdojo-site/privacy.html
Screenshots
Verdict
Devmaxx and QuantDojo are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. Devmaxx sells 2 in-app purchases, starting at $8.99 per month and QuantDojo sells 3 in-app purchases, starting at $12.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | Devmaxx | QuantDojo |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (495 ratings) — better | — |
| Positive reviews | 20.5% of reviews | — |
| Number of ratings | 495 — better | — |
| Update frequency | Every 2 weeks | — |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Subscription | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.5 | 17.0 — better |
| Further details — not scored | ||
| Size | 26 MB | 3 MB |
| Age rating | 12+ | 4+ |
| Developer | Arjay McCandless LLC | Elias Lindbergs |
In-app purchases
Devmaxx
- Monthly Devmaxx Subscription7 Days trial$8.991 Month
- Annual Devmaxx Subscription7 Days trial$59.991 Year
QuantDojo
- Monthly$12.991 Month
- Annual$79.991 Year
- Lifetime Access$199.99









