Thousands of users love Intelli Flashcards for its simplicity, effectiveness and elegance.

But first things first. This app is not free, as the value you get using it properly is enormous. I also don’t want you to do a blind bargain by making this app a paid one. So here is the deal: download it for free, try it with the only limitation of 50 flashcards, and if you love it, support the project by making an in-app purchase.

You add flashcards on your own, with vocabs or information you want to remember. Alternatively, you can import a 2-column CSV file with vocabs, if you have one.

The app is built around Spaced Repetition technique, which is not the best to learn new information (yes, I was wrong believing that initially), but the best to keep the information you’ve learnt. However, you can also learn with flashcards if you have a good visual memory. The best combination: learn new information by building up the associations and move that information to long-time memory by repeating it with flashcards.

Under the hood you will find Sebastian Leitner’s algorithm which basically has two simple rules: if you remember what’s on the back side of the card, the repeating interval is doubled (1-2-4-8-16 days and so on). If you forget the back side, start all over again with daily repeating.

Intelli Flashcards was designed to be used every day by someone, who learns foreign language. I’m aware of the fact, that average user would add 1500+ flashcards on his learning path. He might be outdoors and in a rush, so the process of creating a new flashcard is 0 clicks away - it’s right on the main screen! The repeating session is just 1 click away.

After a year of testing the spaced repetition algorithm, Derek Sivers (entrepreneur, programmer, founder of CD Baby and just a great person) stated that it was the most helpful learning technique he has tried for 14 years. To read more about Derek’s experiment, visit

From developer: after finishing working on Intelli, I started to use it to learn Spanish just to test the effectiveness of this algorithm. Intelli is not the only tool I’ve used, but it had the biggest impact on the learning speed and effectivity. I went from 0 to C1 level in Spanish in just 1 year, spending in average 15-20 minutes on learning every day. To read about other tools I’ve used to learn Spanish, go to

But then I’ve stumbled upon a great article about language learning, written by Tim Ferriss, the best-selling author and self-experimenter:

Inspired by that article, I’ve worked on the possibility of adding images directly to flashcards. Version 3.0 was born. Thank you, Tim! That function has enhanced the experience the users have got with the app. And it’s much more interesting to recall a vocab looking on image. That’s how Rosetta Stone works. That’s how we recall our native vocabs. Maybe I should start a new language just to test this technique with images. ;)

User experience is one of the keywords this app is built around. So your opinion on that is very important to me. You can contact me personally out of the app and receive my response as soon as possible.

When I develop a new version of the app, I make sure new functionality does not affect the original user experience. However, it’s hard to predict the way you are going to make use of it. So if there is some unexpected behavior of the app, feel free to tell me about it.

And when somewhere in the future you realize, Intelli has supported you a lot on your path of learning, I’d love your short review in AppStore.

What’s New

Version 4.2

This long overdue update contains a lot of bug fixes and stability improvements. These include:
- no more crashes when importing big files
- it's possible again to add a picture from the Photo Library
- if you want to use Text-To-Speech, but your device is muted, now you can see a corresponding prompt
- other small fixes in layout

Thank you so much for using Intelli!! A lot of components are being written from scratch. If this update has brought any new bugs, please don't hesitate to write a short feedback, so I can fix it promptly. Stay safe and have a nice day!

Ratings and Reviews

3.5 out of 5
14 Ratings

14 Ratings

Bobby Lews ,

Keep improving

After trying all the spaced repetition apps I use this app the most. I'm an engineer so I'm always envisioning ways for constant improvement upgrade.

My priority input would be to correct that the APP downgrades images to an unusable level in some instances wasting my time and effort. There definitely needs to be some user control!!!!

I'd also like to see alerts and reminders. Especially, an in app purchase for use with the Apple Watch. That would be amazing and really change my day to day life given I use this everyday. If you are constantly learning and studying like I am then this will be more than some app to you. Fortunately the developer is responsive to emails and active because this is more than just an app for some of us.

Other wish list items would be different options for algorithms to the spaced repetition. The app was free to download so definitely give it a try!!

gilamonster1956 ,

Author seems dishonest about upgrade

This app lacks some of the bells and whistles of the other apps. I'm okay with that, I don't them anyway. After a few hours I figured out an efficient way to import cards. Again, I'm okay with that. After importing 50 cards, the app informed me, the free version has a 50 card limit. I don't remember seeing that before, but okay. A developer needs to make some coin. However, when I try to find out what the update costs whether it be through the app, on the author's web site, or in the Apple Store no info. It's as if he wants to trap you into paying - tap... tap... tap... Gotcha! Too late! Thanks for the $$. Seems pretty dishonest to me. I done with this guy.

Flash Cards! ,


This is a great App that is based on principles of adult learning: repetition, variety, randomness and self-pacing. Words you've learned reappear at a reduced frequency. Words that you are still learning re-appear more frequently. Want words in one language, or the reverse-- that's easy. Want them randomly mixed in not languages, that's easy too. Synching between devices makes the app versatile and device friendly. Highly recommended.

App Privacy

The developer, Bogdan Weidmann, 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 Collected

The developer does not collect any data from this app.

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


Bogdan Weidmann
25.7 MB

Requires iOS 10.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, German, Japanese, Russian, Spanish, Ukrainian

Age Rating
In-App Purchases
  1. Full Version $3.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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