QC検定® Grade 4 Exam Prep JP

Name: QC検定® Grade 4 Exam Prep JP
Author: razuma

razuma

⬇ 100+ downloads

Est. actual: 333

Free

Released: Mar 23, 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 +2 installs — 83% slower than the week before (+12) · 1/day since Sep 30
🏆Among Business apps bottom 41% by installs gained this week (769 peers growing)
🛠Updates quiet · updated 120 days ago

Installs since launch

+35 installs since Sep 30

Update history

1.2 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 4 Exam Prep JP is a business app by razuma with 100+ downloads (about 333 estimated). +2 installs in the last 7 days. Released Mar 23, 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 4 exam. Study efficiently with practice questions and detailed explanations across all 5 subjects. ■ Subjects Covered - Basic Concepts of Quality Control - Management Methods - Basic Concepts of Quality - Basic Concepts of Improvement - Basic…”