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Goodnotes 6
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Notability
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Gmail - Google 推出的電子郵件服務
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Microsoft Word
5
Microsoft PowerPoint
6
Google 雲端硬碟
Forest 專注森林 - 讀書專注番茄鐘
SimpleMind Pro - 思維導圖
ReminderCal - Reminders to Cal
GoodReader PDF Editor & Viewer
iAnnotate 4 — PDFs & more
Notes Writer Pro: Sync & Share