數學工具：探究四邊形 vs CheckHW2
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
數學工具：探究四邊形
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適用年級：小四或以上 小朋友可在方格紙上製作四邊形，程式能從邊和角的特性，辨別這個四邊形的種類，並利用公式計算它的周界和面積。 培生香港製作不同的數學工具，供教師於課堂教學或學生課餘自學之用。
CheckHW2
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CheckHW 2 是專為教師設計的班級作業清點工具，協助教師更快速、直覺地完成每日作業檢查與紀錄。 可自訂並新增班級、科目與班級人數，也可設定空號，依不同班級需求彈性建立清點名單。空號會保留原座號並以灰階呈現，不影響學生座號順序。 每日清點結果可保存紀錄，方便教師後續查詢與整理，並可依月份或自訂日期範圍匯出資料。
Screenshots
Verdict
The clearest difference is price: 數學工具：探究四邊形 at Free against CheckHW2's $0.99. 數學工具：探究四邊形 also leads on iOS requirement (6.0 vs 17.0). On 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
數學工具：探究四邊形 is free to download; CheckHW2 costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | 數學工具：探究四邊形 | CheckHW2 |
|---|---|---|
| Price | Free — better | $0.99 |
| Update frequency | — | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPad | iPhone, iPad — better |
| Requires iOS | 6.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 5 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Pearson Education Asia Limited | Shih Yuen Hsiao |
In-app purchases
數學工具：探究四邊形
No in-app purchases
CheckHW2
No in-app purchases
