# Krdz — Flash cards made easy

> Flash cards made easy (iPhone/iPad app by Pierre Bongen.)

- Source: https://appshunter.io/ios/app/krdz/id1438141281 (this page in markdown: same URL + `.md`)
- Developer: [Pierre Bongen](https://appshunter.io/developer/436144429)
- Category: Education, Productivity
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 12.2 · 8 MB
- Languages: American English, German (Germany)
- Released: 2018-12-14
- Data updated: 2026-05-19
- User reviews in markdown: https://appshunter.io/ios/app/krdz/id1438141281/reviews.md

## What is Krdz?

Krdz is an easy to use flash card app!

• Simply write the flash card:

In Krdz, flash cards are made of text that you write and format. Like in a text editor or word processor. It is not required to fill in forms, nor to manage databases or comprehend their structure.

• Learn with spaced repetition:

Krdz uses a spaced repetition system (SRS). It shows you flash cards for you to answer. It does so repeatedly, but the period until a card is shown you again becomes longer each time provided that you answered the flash card correctly. Until you have learned it.

• Works offline!

Krdz does not rely on an internet connection in order to work. A user account is not required either. In fact, there are no user accounts in Krdz.

• Privacy

Krdz stores and processes only data it needs to implement its features. No data you enter leaves the app unless you instruct Krdz to do so (which currently is only when you give feedback by email from within the app). No data is collected about you, no dossier created.



I am using Krdz myself to learn some basic Dutch and French. I was looking for a non-distracting, easy to use and clearly structured flash card app but couldn't find one. So I made one myself. :D

I have many more ideas for Krdz, so stay tuned! The next major feature I intend to work on is "tags". Tags will allow you to organise your flash cards in groups which then can be learned independently. No more mixing Dutch and French! \o/



P.S.: You pronounce "Krdz" like "cards"… ;)

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Standard Package | $0.99 | one-time |



## Version history (last 5 releases)

### 1.3.3 — 2019-09-20

Adjustments have been made that address some of the changes in iOS 13.

### 1.3.2 — 2019-06-18

New Marker Tool, Reworked Toolbar, Bugfixes

IN DETAIL:

• The Toolbar of the Flash Card Editor has been reworked:
- Added new "marker" tool: stroke and tap words to apply the current text format.
- Text formatting options are more discoverable.

• Bugfixes:
- Some texts in the UI were missing.

### 1.3.1 — 2019-05-28

Revamped Testing Section, Bugfixes

IN DETAIL:

• The Testing section has been revamped:
- Clearer design.
- Added new type of test "10 random flash cards".

• Bugfixes:
- The table in the Library section was not updated properly in some situations.
- The layout of the flash cards in the Memorising and Testing sections broke when the text they displayed had certain widths.

### 1.3 — 2019-04-02

Search in the Library of Flash Cards

IN DETAIL:

• Search for flash cards in you library within the following scopes:
- fulltext
- in answer only
- in question only
- in answer and question

• When searching, the flash cards in the "Memorising" and "Testing" sections will now be limited to the result of that search.

### 1.2 — 2019-02-08

Notifications • Multiple Selections of Flash Cards • Fixes

IN DETAIL:

• Optional notification for when flash cards become available for testing again.
• Optional notification that reminds you to add new flash cards now and then.
• Badge on Krdz's app symbol displays the number of cards available for testing.
• Multiple Selections of flash cards enabling
- the deletion of multiple flash cards at once,
- the resetting of the learning progress of multiple flash cards at once.
• Flash cards can now be deleted from within the detail view.

FIXES:

• The layout of table cells in the Library section was broken.
• Resolved situations in which the learning progress indicator could be mistaken for a page control.

## Apps similar to Krdz

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Muna Flashcards](https://appshunter.io/ios/app/muna-flashcards/id1568849681) | 5.0 (6) | Free | Education |
| [Leitner Box Flashcards](https://appshunter.io/ios/app/leitner-box-flashcards/id1671434096) | 4.6 (28) | Free | Education |
| [Woli: Word List made easy](https://appshunter.io/ios/app/woli-word-list-made-easy/id1458415694) | 3.0 (1) | Free | Education |
| [Everyday ilm](https://appshunter.io/ios/app/everyday-ilm/id1621167283) | 5.0 (5) | Free | Education |
| [IELTS Analyst](https://appshunter.io/ios/app/ielts-analyst/id1560325311) | — | Free | Education |
| [Phrasal Verb App: Learn + Play](https://appshunter.io/ios/app/phrasal-verb-app-learn-plus-play/id6670745628) | 3.0 (2) | Free | Education |

## More apps by Pierre Bongen

- [Lights at Sea](https://appshunter.io/ios/app/lights-at-sea/id1173530962)
- [RuneKeys](https://appshunter.io/ios/app/runekeys/id1503915770)
- [IPAKeys](https://appshunter.io/ios/app/ipakeys/id1521691499)
- [Fix at Night](https://appshunter.io/ios/app/fix-at-night/id1553681316)

All apps by Pierre Bongen: https://appshunter.io/developer/436144429

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-19.*