About this app
Concurrency Basics is an independent study app for learning and reviewing core concurrency ideas through focused practice. It is built for students, self-taught developers, interview candidates, and engineers who want stronger fundamentals without needing an account. Study across Fundamentals, Practical Skills, Common Pitfalls, and Advanced Concepts with 160 questions. Every question includes an explanation so you can understand the reasoning behind the answer, not just memorize it. Features: - FSRS spaced-repetition intervals for efficient review - Weak-point heatmap to find topics that need attention - Daily challenge for steady practice - Mock exams for timed review sessions - Offline practice for commutes, travel, or low-signal areas - No login required Practice offline, no login required. Your study flow stays simple and private. Independent study app for Concurrency Basics practice. Not affiliated with, endorsed by, or sponsored by any company, certification body, exam operator, or vendor. All trademarks belong to their respective owners.
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 15, 2026 · 1:24 PM Free