📈Last 7 days+1 installs — 75% slower than the week before (+4) · 0/day since Oct 7
🏆Among Education apps bottom 0% by installs gained this week (2026 peers growing)
🛠Updatesquiet · updated 47 days ago
Installs since launch
+5 installs
since Oct 7
Update history
2.0.1Sep 26, 2026 · seen Oct 24, 2026
Welcome to JavaScript Mastery!<br><br>• Complete Modern Redesign & Dark Mode.<br>• Massive Curriculum 1,000+ questions across 20 topics (Foundations to Expert).<br>• Spaced Repetition Engine automatically schedule missed questions for permanent memory.<br>• Topic Mastery Scores track your readiness with 4-tier skill analytics.<br>• Quick-reference guides for Event Loop, Prototypes & 't
Only the current version so far — new entries appear as the app ships updates.
JavaScript Mastery: JS Quiz is an education app by mairoky with 100+ downloads (about 225 estimated). +1 installs in the last 7 days. Released Sep 17, 2022. Install growth, rank history, SDKs and ad networks.
From the store listing: “Test your JavaScript knowledge with 1,000+ JS MCQs, tricky code and and notes.”
