四字熟語侍 vs Think Why
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
四字熟語侍
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四字熟語侍はスワイプ操作で四字熟語を斬りながら学べるアクション学習ゲームです。 画面に現れる漢字を素早く斬ることでコンボが発動し、爽快な操作感とともに高得点をめざせます。 遊んでいるうちに、四字熟語の読みや意味を自然と身につけられます。 四字熟語は難易度別に収録されています。 • 初級:中学受験で覚えておきたい四字熟語 • 中級:一般教養として知っておきたい四字熟語 • 上級:知っていると一目置かれる四字熟語 合計 600問以上 を収録し、段階的にレベルアップしながら学習できます。 辞書機能ではプレイ中に出てきた四字熟語を登録して後から確認できます。 オンラインランキングに対応しており、他のプレイヤーとスコアを競うことも可能です。 意味解説にはふりがなが付いているため、小学生でも安心して楽しめます。 ゲームとして遊びながら、四字熟語の知識を無理なく定着させたい方におすすめです。
Think Why
This app teaches elementary students how to understand math word problems by breaking down the reasoning process into manageable steps. It focuses on conceptual understanding rather than just keyword matching. Users can access free content or unlock the full learning path with a one-time purchase.
- Step-by-step reasoning for word problems
- Interactive models for visualization
- Explanation of intermediate numbers
- Answer checking against the story
- Transferring reasoning to new contexts
- Full learning path unlock
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Some kids can calculate correctly and still get stuck on word problems. Think Why helps them slow down, make sense of the story, and see how the quantities fit together. Lessons use movable diagrams, short prompts, and guided practice. Children learn to: • identify what the question is asking • pick out useful information • connect quantities before choosing an operation • explain what an intermediate result means • check the answer in the original story • try the same idea in a new situation Think Why is designed for understanding, not speed or endless worksheets. Content is organized into six stages, from elementary foundations to more challenging reasoning. Try it free: • 2 complete courses in each stage • 1 Thinking Method • 1 Reasoning Challenge • practice for the included courses A one-time Full Learning Path purchase unlocks all 115 courses, 345 guided levels, 14 Thinking Methods, 12 Reasoning Challenges, full practice, stage check-ins, and weekly challenges. No subscription. No account, ads, tracking, or chat-based AI. Learning progress stays on this device. Purchases and restoration are handled by Apple.
Screenshots
Verdict
The clearest difference is device support: Think Why at 2 against 四字熟語侍's —. On price, in-app purchases and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. 四字熟語侍 sells 1 in-app purchase, starting at $1.99 per month and Think Why sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
| Parameter | 四字熟語侍 | Think Why |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | — | Fortnightly |
| Ads | — | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | — | iPhone, iPad — better |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 53 MB | 62 MB |
| Age rating | 4+ | 4+ |
| Developer | KNOWLEDGE UP LLC | 放 徐 |
In-app purchases
四字熟語侍
- 広告の非表示(月額)$1.991 Month
Think Why
- Full Learning Path$19.99









