3 Seconds Memo - Simple Notes

3-Second Memo is a simple notepad app for quickly writing down and saving ideas, notes, and content ideas the moment they come to mind.

■Concept Instead of complex features, 3-Second Memo focuses on letting you write as quickly and easily as possible. It helps you capture ideas you might otherwise think, “I’ll write it down later,” and use the app casually as your personal idea notebook.

■Features of 3-Second Memo

• When you launch the app, the memo creation screen opens immediately.
• Works offline. Use it anytime, anywhere, whether on the subway or on a plane.
• Your memo content is saved only on your own device. It is never used for AI training or similar purposes.
• To improve the app, we collect only usage statistics, such as the number of times memos are written.

■Main Features

• Start writing immediately after launching the app
• View saved memos in chronological order
• Organize memos clearly with categories and tags
• Convenient offline access
• Attach photos to memos to save visual notes, references, and ideas
• View attached photos as an album from the category list page
• Add a launch widget to the Lock Screen for quick access to memo creation
• Local-only data storage. Your data is not saved on the operator’s servers.

■Premium Benefits

• Use the app comfortably without ads
• Export to Markdown and CSV for easy integration with AI and other tools
• Add custom categories, making it possible to manage notes by projects that suit you, such as “Streaming Ideas” or “Development”
• Copy memos by category in bulk, so you can easily move each category into other tools

■Important Notice

Before using this app, please review the Terms of Use and Privacy Policy below.

Japanese

• Terms of Use: https://3s-memo.tea-19.com/ja/terms/
• Privacy Policy: https://3s-memo.tea-19.com/ja/privacy/

English

• Terms of Use: https://3s-memo.tea-19.com/en/terms/
• Privacy Policy: https://3s-memo.tea-19.com/en/privacy/