QC検定® Grade 1 Exam Prep JP

Name: QC検定® Grade 1 Exam Prep JP
Author: razuma

razuma

⬇ 50+ downloads

Est. actual: 67

Free

Released: Mar 24, 2026

No in-app purchases

Contains ads

Rated: Everyone

Signals

3 this week · 1 positive · 1 warning All of this week's signals →

📈Last 7 days +1 installs — 67% slower than the week before (+3) · 0/day since Sep 30
🏆Among Business apps bottom 0% by installs gained this week (799 peers growing)
🛠Updates quiet · updated 120 days ago

Installs since launch

+7 installs since Sep 30

Update history

1.1 Jul 13, 2026 · seen Sep 30, 2026

Only the current version so far — new entries appear as the app ships updates.

QC検定® Grade 1 Exam Prep JP is a business app by razuma with 50+ downloads (about 67 estimated). +1 installs in the last 7 days. Released Mar 24, 2026. Install growth, rank history, SDKs and ad networks.

From the store listing: “A study app for the Japan QC検定® (Quality Control Certification) Grade 1 exam — the highest level. Study efficiently with practice questions and detailed explanations across all 8 subjects. ■ Subjects Covered - Probability Distributions and Statistical Inference - Applied Estimation and Testing - Applied Design of…”