楽しい理科小４（ダンケ） vs PercentTraining
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
楽しい理科小４（ダンケ）
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・問題を解きながら小学校３年の理科を学習します。 ・多くの絵で楽しく学習できます。 ・１問１答では，正解削除機能により，間違った問題が繰り返し出題されます。 また，正誤履歴が自動的に記録されるので，間違った問題のみや特定の得点（例８０点）以下の問題のみ実行できます。
PercentTraining
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割合のトレーニング教材です。百分率、歩合について理解を深めるアプリです。
Screenshots
Verdict
The clearest difference is in-app purchases: PercentTraining at none against 楽しい理科小４（ダンケ）'s 1. PercentTraining also leads on update cadence (daily vs every 13 months) and iOS requirement (15.6 vs 18.2). 楽しい理科小４（ダンケ）'s advantage is ads (none vs shown). On price 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
Both are free to download. 楽しい理科小４（ダンケ） sells 1 one-off in-app purchase. PercentTraining asks for nothing beyond the download.
楽しい理科小４（ダンケ） ships an update every 13 months, PercentTraining daily. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.
| Parameter | 楽しい理科小４（ダンケ） | PercentTraining |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 13 months | Daily — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 18.2 | 15.6 — better |
| Further details — not scored | ||
| Size | 24 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Norio Takeda | Katsuhiko Yao |
In-app purchases
楽しい理科小４（ダンケ）
- ゴールドコイン$7.99
PercentTraining
No in-app purchases
Questions
Is 楽しい理科小４（ダンケ） free?
Is PercentTraining free?
Do 楽しい理科小４（ダンケ） or PercentTraining have ads?
Which is updated more often, 楽しい理科小４（ダンケ） or PercentTraining?
Other comparisons
