English Bugs vs 楽しい理科小４（ダンケ）
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
English Bugs
Engage in an interactive story to help an old ladybug retrieve stolen items from mischievous bugs. Earn coins to customize your character and unlock all content with a single in-app purchase. This game teaches essential vocabulary through engaging gameplay without ads or subscriptions.
- Interactive story-based learning
- Vocabulary practice and level-up system
- Character customization with coins
- Teaches colors, shapes, numbers, and more
- Native English pronunciation
- Ad-free and subscription-free experience
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Study English while playing! Help the old ladybug get her things back from the bad bugs. Search for clues, find out which bug took her stuff and make them give it back! Of course, you’ll get a present for your help. Collect coins and buy clothes for your character. - One in app purchase unlocks all content. - Absolutely no ads and no subscriptions. - Study colours, shapes, numbers, fruit, vegetables, animals, musical instruments and clothes (more to come soon!) - Words are introduced gradually as the game progresses. - Boss levels test the words introduced in the previous levels. - Practice words and level up them up - get coins and buy items! - Native English pronunciation. - Designed and created by an experienced English language teacher. For Parents This game has been carefully designed without using an intermediate language or writing . When children are first learning new words, using writing can create an unnecessary boundary that is difficult for students who have yet to master the alphabet. English Bugs aims to create direct links in users’ minds between the English words and the concepts that they represent, without using writing or translations.
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。
Screenshots
Verdict
The clearest difference is update cadence: English Bugs at every 3 months against 楽しい理科小４（ダンケ）'s every 13 months. English Bugs also leads on iOS requirement (9.0 vs 18.2). On price, ads, in-app purchases 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. English Bugs sells 1 one-off in-app purchase and 楽しい理科小４（ダンケ） sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
English Bugs ships an update every 3 months, 楽しい理科小４（ダンケ） every 13 months. The most recent releases landed on October 17, 2026 and October 27, 2026 respectively.
| Parameter | English Bugs | 楽しい理科小４（ダンケ） |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 months — better | Every 13 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 9.0 — better | 18.2 |
| Further details — not scored | ||
| Size | 132 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | Thrown Toys Software | Norio Takeda |
In-app purchases
English Bugs
- Full Version Upgrade$3.99
楽しい理科小４（ダンケ）
- ゴールドコイン$7.99
