About this app

We love index cards. We use them a lot. They are a versatile and surprisingly powerful tool for all kinds of tasks. From brainstorming or flash cards, to storyboarding and planning entire projects, they have a place in your workflow. Cardflow captures the ease and flexibility of paper index cards and brings that experience to the Mac. Jot down ideas or sketch diagrams on cards and arrange them on a large board. Use cards to capture individual ideas, sketch diagrams, or type detailed notes. Turbocharge your workflow today! Have all the fun of using index cards, without the forest-pulping guilt of paper. Cardflow is perfect for: + Organizing your next novel or screenplay + Storyboards for videos or movies + Studying for an exam + Learning a new language + Planning weddings, parties, and other events + Training + Project management + Agile, Scrum, and other methodologies + Group brainstorming + Daily journaling + Writing your daily goals and to-dos + And much more! We hope you find Cardflow to be a useful tool in your daily workflow. Thanks so much, -- The App Makers @ Qrayon LEGAL Cardflow+ requires a subscription to a monthly plan, which includes a 7-day free trial for new users where you can try out all the features. New subscriptions includes a trial period that will begin once you've confirmed your purchase with your iTunes Account. When the trial period concludes, your subscription will start and renew automatically. Any unused portion of a free trial period is forfeited if an additional subscription is purchased. Your iTunes Account will be charged for the upcoming period unless you disable auto-renewal or cancel your subscription in your Account Settings at least 24-hours prior to the end of the current period. Terms of use: http://www.qrayon.com/home/CardflowMac/terms.aspx Privacy policy: http://www.qrayon.com/home/CardflowMac/privacy.aspx

Latest release

What’s New

Version 2.0 Jul 23, 2026

+ Minor updates

Audience growth

Ratings growth

Steady

7-day gain +0

Ratings / day 0.0

30-day gain +0

US rating-count history

0 ratings

Baseline captured. Growth appears after the crawler observes a changed rating count.

Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.

Price tracking