30 Seconds vs Big Data Knowledge Test
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
30 Seconds
Test your mental math abilities by solving as many equations as possible within a 30-second time limit. This app focuses on addition, subtraction, and multiplication, with plans to add more operations. Track your progress and aim for new high scores.
- Solve math equations quickly
- Improve mental math skills
- Includes addition, subtraction, multiplication
- Track high scores
- 30-second timed challenges
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Solve as many math equations you can in 30 seconds. Improve your mental math skills! Includes addition, subtraction, and multiplication. More operations to come! Keep track of your score as you play and view your top scores.
Big Data Knowledge Test
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Unlock your potential in Big Data with the Big Data Knowledge Test! Prepare to thrive in the competitive world of Big Data analytics with our comprehensive test prep app, designed to equip you with essential knowledge and skills. Whether you're an aspiring data scientist or a seasoned professional, this app offers a complete range of practice questions that cover all foundational aspects crucial for mastering Big Data. As you progress, each question comes with detailed explanations that enhance your understanding, ensuring you're not just memorizing answers, but truly grasping concepts for practical application. Key Features: Comprehensive Question Bank: Access a wide variety of questions that cover all critical Big Data topics, ensuring you're ready for real-world challenges and job market demands. Insightful Explanations: Go beyond surface-level answers with in-depth rationales that build your understanding and sharpen your analytical skills. Custom Test Creation: Personalize your study sessions by selecting topics and question types tailored to your unique learning goals, maximizing efficiency and focus. Progress Tracking: Stay on top of your preparation with an intuitive progress tracker that highlights your strengths and areas for growth, keeping you on track for success. Offline Access: Learn anytime, anywhere with offline functionality, allowing you to stay consistent in your preparation, even when on the go. User-Friendly Interface: Enjoy a streamlined, intuitive experience that enhances your focus and keeps your learning journey enjoyable and effective. Download the Big Data Knowledge Test now and get ready to conquer the Big Data landscape. Prepare for the next step in your career with confidence, and stay ahead of the competition in the fast-evolving data-driven job market. Big Data Knowledge Test – Your gateway to mastering data-driven decision-making and standing out in the job market. Empower your preparation. Elevate your expertise. Succeed with confidence. --- Auto-renewable subscriptions are available from the App Store for Big Data Knowledge Test. • Payment will be charged to your iTunes account at confirmation of purchase and will automatically renew (at the duration/price selected) unless auto-renew is turned off at least 24 hrs before the end of the current period. • Account will be charged for renewal within 24-hours prior to the end of the current period. • Current subscription may not be cancelled during the active subscription period; however, you can manage your subscription and/or turn off auto-renewal by visiting your iTunes Account Settings after purchase. Terms of Use: https://bigdata.hubtests.com/terms Privacy Policy: https://bigdata.hubtests.com/privacy
Screenshots
Verdict
The clearest difference is in-app purchases: 30 Seconds at none against Big Data Knowledge Test's 2. 30 Seconds also leads on device support (3 vs 1) and iOS requirement (9.0 vs 17.2). Big Data Knowledge Test's advantage is update cadence (every 3 months vs every 9 months). On price and ads 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. Big Data Knowledge Test sells 2 in-app purchases, starting at $13.99 per month. 30 Seconds asks for nothing beyond the download.
30 Seconds ships an update every 9 months, Big Data Knowledge Test every 3 months. The most recent releases landed on October 6, 2026 and September 27, 2026 respectively.
| Parameter | 30 Seconds | Big Data Knowledge Test |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 9 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 9.0 — better | 17.2 |
| Further details — not scored | ||
| Size | 14 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Pouria Almassi | Cargo Teleport Inc |
In-app purchases
30 Seconds
No in-app purchases
Big Data Knowledge Test
- Premium monthly subscription$13.991 Month
- Lifetime version$24.99
Questions
Is 30 Seconds free?
Is Big Data Knowledge Test free?
Do 30 Seconds or Big Data Knowledge Test have ads?
Which is updated more often, 30 Seconds or Big Data Knowledge Test?
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