# StudyJunkie — Block Apps. Quiz to Unlock.

> Block Apps. Quiz to Unlock. (iPhone/iPad app by KAZUHIRO KAMAKURA.)

- Source: https://appshunter.io/ios/app/studyjunkie/id6758565892 (this page in markdown: same URL + `.md`)
- Developer: [KAZUHIRO KAMAKURA](https://appshunter.io/developer/556240381)
- Category: Education, Productivity
- Price: Free
- Age rating: 4+
- Requires: iOS 18.0 · 10 MB
- Languages: English, Japanese
- Released: 2026-03-18
- Data updated: 2026-05-17
- User reviews in markdown: https://appshunter.io/ios/app/studyjunkie/id6758565892/reviews.md

## What is StudyJunkie?

StudyJunkie turns every app-opening moment into a study opportunity.

Before you can open social media, games, or any app you choose, you must answer a quiz. Powered by iOS Screen Time (Family Controls), StudyJunkie puts a smart learning gate between you and distraction.

HOW IT WORKS
1. Select apps you want to restrict
2. When you try to open them, a quiz appears
3. Answer correctly to unlock the app for your chosen duration

QUIZ CATEGORIES
- Math: auto-generated calculation problems (Jr. High / High School level)
- English Vocabulary: 3,700+ words with audio (Jr. High, High School, TOEIC)
- Pharmaceuticals: brand name and generic name matching
- Custom: create your own questions for any subject

FEATURES
- 7 difficulty levels (Jr. High 1-3, High School 1-3, TOEIC)
- Word memory tracking: words answered correctly 3+ times are marked learned
- Combo system: keep your streak going!
- ZONE mode: triggered at 5+ combos for a special effect
- Detailed stats: total answers, accuracy, best streak, and more
- Custom quiz creator: add any question you need
- Bilingual UI: Japanese and English supported
- No data collection: your study data stays on your device


## Version history (last 2 releases)

### 1.1 — 2026-04-04

- Fixed restriction app selection issue on iPad
- Improved shield screen localization
- Localized math quiz text and difficulty level names
- Added elementary school math quiz packs (Grades 1-6)
- Fixed audio playback bug
- Improved onboarding flow
- Expanded TOEIC vocabulary

### 1.0 — 2026-03-18

No release notes.

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All apps by KAZUHIRO KAMAKURA: https://appshunter.io/developer/556240381

## Related topics

[kazuhiro kamakura](https://appshunter.io/ios/topics/kazuhiro-kamakura)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-17.*