Comparison

日本地図ドリル Ext vs Think Why

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

Head to head
About

日本地図ドリル Ext

Features
Read full description

日本地図と地図記号につて楽しく学ぶソフトです。 内容としては、都道府県の県庁所在地、人口、面積、主な特産品などです。 都道府県のジグソーパズルで、場所や形などの知識も深まるでしょう。 要所で、合成音による読み上げもあります。

About

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.

Highlights
  • 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
Features
Read full description

Think Why helps learners understand elementary math word problems instead of matching keywords or jumping straight to an operation. Each lesson turns hidden reasoning into small, reviewable steps: • Identify what the problem is asking • Organize useful quantities and conditions • Use interactive models to see the relationship • Explain what each intermediate number means • Check the answer against the story • Transfer the same reasoning to a new context Free access includes: • 2 complete courses in each of 6 stages • 1 Thinking Method and 1 Reasoning Challenge • Practice for the included courses A one-time Full Learning Path purchase permanently unlocks all 115 courses, 345 guided levels, 14 Thinking Methods, 12 Reasoning Challenges, plus complete practice, stage check-ins, and weekly challenges. This is not a subscription. No account is required. The app has no ads, tracking, or chat-based AI. Learning progress stays on this device, while purchases and restoration are handled by Apple.

Screenshots

日本地図ドリル Ext4 screens
Think Why4 screens

Verdict

The call

The clearest difference is in-app purchases: 日本地図ドリル Ext at none against Think Why's 1. 日本地図ドリル Ext also leads on iOS requirement (12.0 vs 17.0). On price, ads and device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Think Why sells 1 one-off in-app purchase. 日本地図ドリル Ext asks for nothing beyond the download.

Scorecard2 real differences · 7 level
日本地図ドリル Ext versus Think Why: the parameters behind the verdict, then further details
Parameter日本地図ドリル ExtThink Why
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 7 months—
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better17.0
Further details — not scored
Size63 MB51 MB
Age rating4+4+
Developerryo itou放 徐

In-app purchases

None

日本地図ドリル Ext

No in-app purchases

1 purchases

Think Why

One-time1
  • Full Learning Path$19.99

Questions

Is 日本地図ドリル Ext free?
日本地図ドリル Ext is free to download, with no in-app purchases.
Is Think Why free?
Think Why is free to download, with in-app purchases available.
Do 日本地図ドリル Ext or Think Why have ads?
Neither 日本地図ドリル Ext nor Think Why shows ads.

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