Cardflow: Index & Flash Cards 4+

Think. Organize. Create‪.‬

Qrayon, LLC

    • 4.6 • 2.6K Ratings
    • Free

iPad Screenshots


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 iPad.

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:
+ Storyboards for videos or movies
+ Studying for an exam
+ Learning a new language
+ Writing the plot for a novel or book
+ Organizing weddings, parties, and other events
+ Corporate training
+ Project management
+ Agile, Scrum, and other methodologies
+ Group brainstorming
+ Writing your daily goals and to-dos
+ And much more!


To make it easy to see how well Cardflow fits into your workflow, we've decided to make the Standard Edition of Cardflow absolutely free. You can upgrade at any time to Cardflow+ for more features and to support our work.

Thanks so much,

-- The App Makers @ Qrayon

What’s New

Version 6.4

+ Support Pencil double-tap system setting: Set it to erase to toggle eraser

Ratings and Reviews

4.6 out of 5
2.6K Ratings

2.6K Ratings

brother-in-need ,

Gives the mileage needed

I needed an app to make handwritten flash cards digitally. Like other users have mentioned, there is NO other app on the market. Quizlet is the best for simple term and definition, but when needed to write out formulas for math that look intuitive and don’t take an absurd amount of time - either to type out or take a picture of a paper version (assuming you have the paid version of quizlet) are not even options, thus there wasn’t another substitute for paper index cards except this app. Where else are you able to write terms and draw something like a comic to remember it on the back? I wouldn’t have a clue, and it’s bizarre that it doesn’t exist anywhere else.

ME🐬🐳📱✨✨ ,

Only feature is writing on flash cards. Not helpful to actually study.

This app does not have any competition and it shows.

Yes, this is the only app where you can hand write your flash cards. That feature is great but that is about it. The app icons/buttons within the app are not responsive like other apps and this app somehow has worse hand recognition when writing than any other app. You can’t change color or size of the pencil or eraser and there is no auto-shape feature for drawing things like circles and squares. This app is also very annoying because when you open the flash card it is on the lined side for details, but I like to write my topics/subject on the flash card first. There is no feature to customize this.

Additionally, there is no feature to actually go through the flash cards. There is no “study” mode or learning games in the app that you can use with your cards. To study you have to click on each flash card you made individually and flip it over when you want to see the other side.

I would rather handwrite in another app and import the photos to an app like Quizlet.

TLDR: Overall, very disappointing app. The novel feature of this app is being able to hand write the flash cards and that is it. It is lacking excellent features of other apps like ways to learn your flash cards and customizable writing tools. Again, it is obvious that this app is not pushed to be “better” because it has no competition in the App Store.

WillowenpH ,

Finally - a functional Index Card app that looks like real Index Cards

Finally, a decent Index Card app. Simple, intuitive, and easy to use. It has it’s quirks like any app, but they have done their best- and done it well. I’ve tried others (including Flash Card apps), but this simple app outshines them all. I’ve used ‘real’ index cards for years, for many uses. I received my RN degree with the help of the cards, inventoried my home, my LP collection, and many others
I’m now writing a narrative of my life, and the app lets me use what works for me. It’s not perfect, it has its quirks, but the learning curve is simple. I gave this a 4 because no one, and no app is perfect. And the hefty price tag may be difficult for some, but the free version works well. Perhaps a student discount might be offered….
If you want a simple and functional Index Card app try this one.

App Privacy

The developer, Qrayon, LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Identifiers
  • Usage Data
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

More By This Developer

Photo & Video

You Might Also Like