Tech Interview Prep vs Devmaxx
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Tech Interview Prep
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Master Data Structures, Algorithms, and System Design with DSA Prep — the intuitive flashcard app designed for software engineering interview preparation. SWIPE TO LEARN Review 150+ essential topics using our simple swipe interface. Swipe right if you know it, left if you need more practice. It's that easy. WHAT'S COVERED • Data Structures: Arrays, Linked Lists, Trees, Graphs, Heaps, Hash Tables • Algorithms: Sorting, Searching, Dynamic Programming, Recursion, Backtracking • System Design: Scalability, Load Balancing, Caching, Databases, Microservices TRACK YOUR PROGRESS See exactly where you stand. Track which topics you've mastered, which need review, and what's left to learn. BOOKMARK & REVISIT Save tricky topics for later. Your bookmarks sync across devices so you can study anywhere. CODE EXAMPLES Each topic includes practical code snippets to reinforce your understanding. STUDY ANYWHERE Your progress syncs to the cloud. Start on your phone, continue on your tablet — your data follows you. Perfect for preparing for interviews at top tech companies. Whether you're a new grad or an experienced engineer, DSA Prep helps you review efficiently and build confidence. Download now and start prepping for your next tech interview.
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/
Screenshots
Verdict
The clearest difference is in-app purchases: Tech Interview Prep at none against Devmaxx's 2. Tech Interview Prep also leads on update cadence (daily vs every 2 weeks) and iOS requirement (15.1 vs 17.5). 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. Devmaxx sells 2 in-app purchases, starting at $8.99 per month. Tech Interview Prep asks for nothing beyond the download.
Tech Interview Prep ships an update daily, Devmaxx every 2 weeks. The most recent releases landed on September 7, 2026 and September 26, 2026 respectively.
| Parameter | Tech Interview Prep | Devmaxx |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.4 (495 ratings) — better |
| Positive reviews | — | 20.5% of reviews |
| Number of ratings | — | 495 — better |
| Update frequency | Daily — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Subscription |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.1 — better | 17.5 |
| Further details — not scored | ||
| Size | 25 MB | 26 MB |
| Age rating | 17+ | 12+ |
| Developer | Aman Navani | Arjay McCandless LLC |
In-app purchases
Tech Interview Prep
No in-app purchases
Devmaxx
- Monthly Devmaxx Subscription7 Days trial$8.991 Month
- Annual Devmaxx Subscription7 Days trial$59.991 Year









