Vision vs LetterRack
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Vision
This app uses your iPhone's camera to scan and identify playing cards in a face-up spread. It can display the order of detected cards and show any missing ones. Basic functionality is available for free, with a subscription unlocking all features.
- Capture card spreads via video stream
- Detect and display card order
- Show missing cards
- Supports regular Poker-Playing cards
- Fast detection (under 1 second)
- Variety of settings
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IMPORTANT: That you really can use the app, you have to make an in-app purchase. Without the in-app purchase, you will have only some basic functionality to verify, that the app does really what you expect. A face-up spread of playing cards can be captured via the video-stream from the back camera of the iPhone. The order of the playing cards will be detected and can be displayed. All missing cards can be displayed too. All regular Poker-Playing cards (Bicycle, Phoenix) are detected. Also the new Phoenix Large Index Deck is supported. Important: Jokers are NOT detected! The detection and analysis works very fast (faster than 1 second). The app has a variety of different settings. To unlock the whole functionality, you can purchase the monthly subscription "Full Access". With this subscription you unlock (for the time periode of the subscription) all features of Vision. In addition to that, it also unlocks (for the same time periode) all in-app purchases of the companion app Vision:Tricks. If you do purchase the subscription, please note: • The subscription of "Full Access" is running one month. • Payment will be charged to iTunes Account at confirmation of purchase • Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period • Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal • Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase • Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. Privacy Policy and Terms of use: https://www.vision-tricks.com/app_access/info/terms-and-privacy-policy.php
LetterRack
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LetterRack. The Mentalist's Secret Weapon. Mentalism lives on one thing: focus. LetterRack gives your spectator exactly what their mind needs to lock onto a thought. Three powerful effects, one elegant tool: A spectator thinks of a random word generated by the app. The mentalist reads their mind. A spectator unscrambles an anagram and focuses on the hidden word. The mentalist reads their mind. A spectator freely chooses any word. The mentalist reads their mind. Three different paths. One impossible outcome. Full control for the performer: LetterRack gives mentalists full control over their letter sets, preparing, organizing, customizing, and cycling through words with precision, so the performer can focus entirely on the audience, not the mechanics. Instant sharing, zero friction: Generate a QR code in seconds and let your spectator scan it with their iPhone. No app download required. They land directly via App Clip, turning their own phone into part of the effect. Always within reach: A Home Screen widget keeps your current word visible at a glance, ready the moment you need it. They think it. You know it. Word lists currently available in English only. Additional languages coming in future updates. The app is free to download and try with up to 5 words. The widget and Apple Watch complication are free to install but show only the first letter of the word. Full word display, App Clip, custom word lists, and advanced word management require an Xtremagic Pass subscription or one-time purchase.
Screenshots
Verdict
The clearest difference is update cadence: LetterRack at every 3 weeks against Vision's every 2 months. Vision's advantage is iOS requirement (13.0 vs 26.4). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Vision sells 1 in-app purchase, starting at $9.99 per month and LetterRack sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.
Vision ships an update every 2 months, LetterRack every 3 weeks. The most recent releases landed on November 2, 2026 and October 24, 2026 respectively.
| Parameter | Vision | LetterRack |
|---|---|---|
| Price | Free | Free |
| Rating | 2.3 (3 ratings) — better | — |
| Positive reviews | 83.3% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod | iPhone, Apple Watch |
| Requires iOS | 13.0 — better | 26.4 |
| Further details — not scored | ||
| Size | 19 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | Martin Eisele | Vincent Launay |
In-app purchases
Vision
- Full access$9.991 Month
LetterRack
- Xtremagic Pass$3.991 Month
- Xtremagic Pass$24.991 Year
- Full Access (One-Time Purchase)$7.99









