Comparison

StudyJunkie vs KanjiStroke

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

StudyJunkie

Features
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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

About

KanjiStroke

Features
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KanjiStrokeは、小学校で習う全1,026字の漢字を書き順アニメーションで学べる学習アプリです。 【主な機能】 ■ 書き順アニメーション 一画ずつ丁寧にアニメーションで表示。正しい書き順を視覚的に学べます。速度調整や一時停止も可能です。 ■ 漢字辞典 音読み/訓読み、画数、部首、熟語例をまとめて確認できます。学年別/画数順/部首順での並び替えや検索にも対応。 ■ 3種類のクイズ - 画数クイズ: 漢字の画数を4択で回答 - 読みクイズ: 漢字の意味を4択で回答 - 書きクイズ: 読みと熟語のヒントから漢字を手書き入力。書き順/形/画数を総合的に判定 ■ 学習進捗 クイズの成績を学年別に記録。どの漢字が得意でどの漢字が苦手か一目でわかります。 ■ 今日の漢字 アプリを開くたびに新しい漢字をピックアップ。毎日少しずつ漢字力を伸ばせます。 【対応範囲】 小学1年生から6年生までの教育漢字 全1,026字 【こんな方におすすめ】 - 漢字の書き順を正しく覚えたいお子さま - 漢字検定の書き取り対策をしたい方 - 日本語を学んでいる方 - お子さまの漢字学習をサポートしたい保護者の方

Screenshots

StudyJunkie3 screens
KanjiStroke4 screens

Verdict

The call

StudyJunkie and KanjiStroke are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

StudyJunkie ships an update every 2 weeks, KanjiStroke every 10 days. Both last shipped on October 16, 2026.

ScorecardNo meaningful differences
StudyJunkie versus KanjiStroke: the parameters behind the verdict, then further details
ParameterStudyJunkieKanjiStroke
PriceFreeFree
Update frequencyEvery 2 weeksEvery 10 days — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.017.0 — better
Further details — not scored
Size10 MB16 MB
Age rating4+4+
DeveloperKAZUHIRO KAMAKURASANWA Inc.

In-app purchases

None

StudyJunkie

No in-app purchases

None

KanjiStroke

No in-app purchases

Questions

Is StudyJunkie free?
StudyJunkie is free to download, with no in-app purchases.
Is KanjiStroke free?
KanjiStroke is free to download, with no in-app purchases.
Do StudyJunkie or KanjiStroke have ads?
Neither StudyJunkie nor KanjiStroke shows ads.
Which is updated more often, StudyJunkie or KanjiStroke?
StudyJunkie ships an update every 2 weeks, and KanjiStroke every 10 days. Most recently, StudyJunkie was updated on October 16, 2026 and KanjiStroke on October 16, 2026.

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