G Blox vs Devmaxx
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
G Blox
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GBlox Mobile App is a robot control software used to control the Mingo Robot. With its uniquely designed interface, GBlox allows Learners to explore STEM (Science, Technology, Engineering and Math) in a fun way, through predefined instructions and advanced logic to achieve more complex tasks
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: G Blox at none against Devmaxx's 2. G Blox also leads on iOS requirement (12 vs 17.5). On price, update cadence, 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. G Blox asks for nothing beyond the download.
G Blox ships an update daily, Devmaxx every 2 weeks. The most recent releases landed on October 6, 2026 and October 14, 2026 respectively.
| Parameter | G Blox | Devmaxx |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.3 (520 ratings) — better |
| Positive reviews | — | 17.0% of reviews |
| Number of ratings | — | 520 — 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 | 12 — better | 17.5 |
| Further details — not scored | ||
| Size | 121 MB | 29 MB |
| Age rating | 4+ | 12+ |
| Developer | Mingo Blox Ltd | Arjay McCandless LLC |
In-app purchases
G Blox
No in-app purchases
Devmaxx
- Monthly Devmaxx Subscription7 Days trial$8.991 Month
- Annual Devmaxx Subscription7 Days trial$59.991 Year
