# CardTrack - The Card Tracker — The Shuffled Deck Card Tracker

> Card tracking tool for identifying selected cards in shuffled decks. (iPhone/iPad app by Marc Kerstein.)

- Source: https://appshunter.io/ios/app/cardtrack-the-card-tracker/id1081525380 (this page in markdown: same URL + `.md`)
- Developer: [Marc Kerstein](https://appshunter.io/developer/821255617)
- Category: Entertainment
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 10.3 · 4 MB
- Languages: American English
- Released: 2017-09-14
- Data updated: 2026-08-15
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/cardtrack-the-card-tracker/id1081525380/reviews.md

## What is CardTrack?

CardTrack is a tool which finds a selected card within a shuffled deck.

 * Input the initial order of a deck of cards into CardTrack.
 * Have a spectator give the deck a riffle or faro shuffle.
 * Have a card selected and replaced into the deck.
 * The cards can then be given one or two more riffle/faro shuffles, as well as a brief overhand shuffle.
 * CardTrack's algorithms will then attempt to determine which card was selected.

To input the cards into CardTrack, the deck could be switched out and given to an accomplice. You could even perform the effect by mailing the deck to a spectator and having them send it back after following the instructions.

CardTrack works perfectly in conjunction with Martin Eisele's Vision app which will detect the order of the deck using the camera.

Note:
* CardTrack does its best to locate the selected card but may not always be accurate. This depends on the number of shuffles as well as the position of the replaced card. In testing, CardTrack works well with 2-3 riffle shuffles, but has also worked with 4 riffle shuffles + 1 overhand shuffle.
* This app is for entertainment purposes only.

## Key features

- Input initial deck order
- Track shuffled cards
- Algorithm-based card detection
- Works with multiple shuffle types
- Integrates with Vision app


## Frequently asked questions about CardTrack

### How accurate is CardTrack in finding the selected card?

CardTrack does its best to locate the selected card, but accuracy can vary based on the number and type of shuffles performed, as well as the card's replacement position. It has been tested to work well with 2-3 riffle shuffles and even up to 4 riffle shuffles plus 1 overhand shuffle.

### Does CardTrack have ads?

No, CardTrack does not contain advertisements. It is a free application with no in-app purchases or ads, providing an uninterrupted experience for users.

### What devices does CardTrack support?

CardTrack is available for iPhone and iPod devices. It is designed to run on these Apple mobile platforms.

### What is the age rating for CardTrack?

CardTrack has an age rating of 4+. This indicates it is suitable for users of all ages, with no mature content.

### When was CardTrack last updated?

The latest version of CardTrack, 1.2.1, was last updated on September 2, 2019. The app was initially released on September 14, 2017.

### Can CardTrack be used offline?

Yes, CardTrack functions as a standalone tool for tracking cards within a shuffled deck. Its core algorithms do not require an active internet connection to operate.

### What kind of shuffles does CardTrack handle?

CardTrack is designed to work with various shuffling techniques, including riffle shuffles, faro shuffles, and overhand shuffles. The effectiveness can depend on the number of shuffles applied.

### What is the user sentiment for CardTrack?

Based on the available data, CardTrack has received a perfect 5.0-star rating from one review. This suggests a highly positive user experience from that reviewer.

## Version history (last 4 releases)

### 1.2.1 — 2019-09-02

Bug fixes and language fixes.

### 1.2 — 2018-10-16

- Cards in chat can be customised to different languages.
- Better integration with Vision.
- Bug fixes for larger displays.

### 1.1 — 2018-01-08

- iPhone X support.
- Added "chat mode".
- Added second algorithm.
- Lots of new features and refinements.

### 1.0 — 2017-09-14

No release notes.

## Apps similar to CardTrack

| App | Rating | Price | Category |
| --- | --- | --- | --- |
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## More apps by Marc Kerstein

- [WebFX](https://appshunter.io/ios/app/webfx/id821255613)
- [Earworm](https://appshunter.io/ios/app/earworm/id953365139)
- [Diverter](https://appshunter.io/ios/app/diverter/id1081486684)
- [The Jerx](https://appshunter.io/ios/app/the-jerx/id1082369141)
- [WikiTest](https://appshunter.io/ios/app/wikitest/id1177870786)

All apps by Marc Kerstein: https://appshunter.io/developer/821255617

## Related topics

[card shuffler](https://appshunter.io/ios/topics/card-shuffler)

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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 2026-08-15.*