1dea - Idea book

Ideas never make an appointment. 1dea catches them in a second, files them without effort, and hands them back just when you had forgotten them.

Made for people who write, teach, research or simply think: aphorisms, quotes, talk outlines, hypotheses, reading notes, projects.

CAPTURE
• From the app, from the Share button of any other app, or with Siri and Shortcuts ("Add an idea").
• Markdown formatting: headings, bold, italic, highlight, lists, quotes, code, links.
• LaTeX equations, on their own line or in the middle of a sentence.
• The place where the idea came to you, added automatically if you wish.

FIND
• Search by words, or by meaning: 1dea finds related ideas even when they share no word.
• Coloured categories, tags and one-to-three-star ratings to filter in one tap.
• Related ideas and links between notes to weave your thinking together.
• A world map of your notes.

REREAD
• Home Screen widget: a random idea, from the categories you choose, refreshed anywhere from every 15 minutes to once a day.
• "Random idea" in Siri and Shortcuts as well.
• Project note: gather several ideas into one working draft.

MEASURE
• Statistics by month, year, category and rating.
• Vocabulary tools: how many words you have written, how many are still ahead of you (Chao2 estimator), and how varied your vocabulary is (Shannon entropy).

SHARE
• Copy or share an idea as a quote, with your signature.
• JSON export and import of your whole library.

YOUR NOTES STAY YOURS
• No account to create: sync goes through your own iCloud, across iPhone, iPad and Apple silicon Mac.
• Search by meaning and statistics are computed on the device.
• Lock with Face ID, Touch ID or passcode.

Free, no ads, no in-app purchases. In English and French.