SDG社創銀河 vs Whiteboardy
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SDG社創銀河
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數位化校園與家長的溝通平台，讓家長輕鬆掌握學生出勤，感受學校即時回報的便利讓家校溝通更有效率。
Whiteboardy
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Whiteboardy 把演算法練習帶進通勤、排隊與日常零碎時間。你不必在手機上寫完整程式碼，只要用自己的話描述資料結構、解題步驟與複雜度，就能檢查思路並獲得下一步提示。 主要功能： • 每日挑戰：每天一題，持續建立解題習慣 • 思路判定：針對核心概念提供回饋，不直接揭露完整答案 • 起手提示：卡住時逐步取得方向 • 演算法學習地圖：從時間與空間複雜度開始建立基礎 • 210 題題庫：依題型與難度探索練習 • 學習進度：記錄完成題目與連續練習天數 • 作答紀錄與錯題收藏：方便回顧與再次挑戰 免費方案每天提供一題挑戰。Plus 與 Coach 方案可解鎖完整題庫、更多每日思路判定次數與進階學習功能。 Whiteboardy 重視的是你如何思考，而不只是最後寫出的程式碼。先把方法想清楚，再回到電腦完成實作。 Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: SDG社創銀河 at none against Whiteboardy's 3. SDG社創銀河 also leads on device support (3 vs 1) and iOS requirement (12 vs 18.0). Whiteboardy's advantage is update cadence (every 8 days vs every 31 months). On price and ads 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. Whiteboardy sells 3 one-off in-app purchases. SDG社創銀河 asks for nothing beyond the download.
SDG社創銀河 ships an update every 31 months, Whiteboardy every 8 days. The most recent releases landed on October 2, 2026 and October 10, 2026 respectively.
| Parameter | SDG社創銀河 | Whiteboardy |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 31 months | Every 8 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 12 — better | 18.0 |
| Further details — not scored | ||
| Size | 123 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Chi Hsien Lai | Po Jen Ko |
In-app purchases
SDG社創銀河
No in-app purchases
Whiteboardy
- 15 Extra Judgments$1.99
- 35 Extra Judgments$2.99
- 65 Extra Judgments$4.99
