馬里蘭文教機構 vs D520
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
馬里蘭文教機構
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功能及特色 1. 親師交流：家長針對特定事項，一對一與班級教師進行溝通。 2. 班級通知單：接收班級教師或學校發送的訊息。 3. 到離校通知：學生到、離校點名推播和到班紀錄查詢。 4. 相簿：家長與老師傳送照片的匯整，可分類並批次下載至手機。 5. 接寶貝預約：家長預約接學生的時間，產生預接名單和語音廣播。 6. 失物招領：發佈遺落在學校的物品照片，提供家長留言認領。 7. 學校FB和網站：快速連結到學校官方的Facebook或網站。 8. 行事曆：依月曆查看學校活動和假日。
D520
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起重機荷重保護 產品特性: ● 顯示型荷重超載限制器可對起重設備進行顯示和警報，當起吊物品時，傳感器產生變形，顯示型荷重超載限制器可以指 示出載荷的數值。 ● 高亮度紅色LED顯示螢幕 ● 重量過載異常時，蜂鳴器會發出警示音提醒操作人員，增強安全性。 ● 當重量超過額定負重時，超載控制器會自動切斷起升機構的動力源，避免事故發生
Screenshots
Verdict
The clearest difference is update cadence: 馬里蘭文教機構 at monthly against D520's every 4 months. D520's advantage is iOS requirement (11.0 vs 16.0). 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. Neither carries in-app purchases, so what you see is what you pay.
馬里蘭文教機構 ships an update monthly, D520 every 4 months. Both last shipped on October 26, 2026.
| Parameter | 馬里蘭文教機構 | D520 |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 16.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 57 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | HUI KUNG | SYSCODE INTERNATIONAL INC. |
In-app purchases
馬里蘭文教機構
No in-app purchases
D520
No in-app purchases
