CountLabs vs Hello Interview
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CountLabs
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CountLab is an educational training app designed to teach how card counting systems work in blackjack. Built for learners of all levels, CountLab helps you practice tracking card values, recognize patterns, and develop faster mental calculations in a focused, interactive environment. What you can do with CountLab: • Practice card counting at your own pace • Learn how running counts and true counts work • Train your reaction speed with realistic card flows • Reinforce correct decisions through repetition CountLab is intended strictly for education and practice. It does not support real-money gambling and does not connect to casinos or betting platforms.
Hello Interview
Prepare for software engineering interviews with structured learning paths, practical guides, and interactive quizzes. Gain confidence in system design, data structures, algorithms, and behavioral questions. Access real interview experiences and community insights.
- Structured learning paths
- Practical interview guides
- Interactive quizzes
- Real interview questions
- Community discussions
- Progress tracking
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Prepare for your software engineering interviews with focused learning paths, practical guides, interactive quizzes, and insights from real interview experiences. Hello Interview helps you build the knowledge and confidence you need for technical interviews across system design, data structures and algorithms, low-level design, behavioral interviews, and more. With the app, you can: • Follow structured learning paths and track your progress • Read clear, practical interview guides • Explore real interview questions shared by candidates • Test your knowledge with interactive quizzes • Learn from community discussions and candidate success stories • Search across articles, guides, and interview questions • Continue learning wherever you are Sign in to sync your progress and access the content available to your Hello Interview account.
Screenshots
Verdict
CountLabs and Hello Interview are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
CountLabs ships an update every 9 days, Hello Interview weekly. The most recent releases landed on October 4, 2026 and October 17, 2026 respectively.
| Parameter | CountLabs | Hello Interview |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (17 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 17 — better |
| Update frequency | Every 9 days | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 16.4 — better |
| Further details — not scored | ||
| Size | 13 MB | 54 MB |
| Age rating | 17+ | 9+ |
| Developer | Alexander Santelli | Optick Labs Inc. dba Hello Interview |
In-app purchases
CountLabs
No in-app purchases
Hello Interview
No in-app purchases









