SCRIBZEE®
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Squid: Take Notes, Markup PDFs
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Notewise - 手写笔记 & PDF
Notewise
Notebook - 记录记事,同步
Zoho Corporation
Microsoft OneNote:保存创意和整理笔记
Microsoft Corporation
Evernote - 笔记管理专家
Evernote Corporation
Google Keep - 记事和清单
Google LLC
彩色笔记(ColorNote) 便签 彩虹便笺 记事本 笔记
Notes
Notion - notes, docs, tasks
Notion Labs, Inc.
Samsung Notes
Samsung Electronics Co., Ltd.