Cardflow brings physical index cards to the iPad, allowing users to write or draw on cards with an Apple Pencil, flip them over, and arrange them across an expansive digital board.
The app offers an unstructured workspace free of rigid forms and pre-set templates. Developers Qrayon designed the software to mimic the physical simplicity of paper index cards for tasks ranging from brainstorming to project planning.
The free tier of Cardflow includes palm rejection, three pen sizes, a highlighter that draws beneath ink, and a three-size eraser accessible via a double-tap on the Apple Pencil. Users can flip any card to view its reverse side or deploy Magic Arrangement to sort cards automatically into piles, lines, and grids.
Free users also gain access to seven card styles—including lined, gridded, storyboard, and checklist formats—alongside unlimited boards sorted into four distinct categories. Finished boards can be shared directly as editable Cardflow files.
Unlocking Cardflow+ via a monthly subscription, annual plan, or one-time purchase introduces 22 additional card types. These additions cover Cornell notes, vocabulary, storyboard frames, weekly and monthly agendas, habit trackers, recipes, and character sheets.
The paid tier also enables drawing directly on the board around and between cards, full custom pen colors with adjustable opacity, text formatting, and shape recognition. Users can embed photos and web pages onto cards, link cards together to map out complex ideas, search within a single board, and export files as PDFs, images, text, OPML, or CSV formats.
Tablets and boards sync through iCloud Drive, expanding the board limit to 12 categories. Annual subscribers can trial the service for one week, with automatic renewals managed through individual App Store account settings unless canceled 24 hours prior to expiration.
The latest version of the application adds Japanese localization to the software interface, as detailed by iPhoneAddict.fr.
