The Grid vs LetterRack
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
The Grid
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The Grid is a magic app that will allow you to perform an INTERACTIVE MAGIC TRICK using images. You can perform The Grid on the phone of all your spectators at the same time, without limit of spectators. The Grid is ideal to amaze small or large groups of people on the real world and also is amazing for streaming platforms like zoom, meet, etc. Also you can perform The Grid on your phone, without an internet connection, showing your screen to a small group of spectators. Welcome to The Grid the INTERACTIVE MAGIC APP!
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 in-app purchases: The Grid at none against LetterRack's 3. The Grid also leads on iOS requirement (15.6 vs 26.4). LetterRack's advantage is update cadence (every 3 weeks vs every 3 months). On price, ads 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. LetterRack sells 3 in-app purchases, starting at $3.99 per month. The Grid asks for nothing beyond the download.
The Grid ships an update every 3 months, LetterRack every 3 weeks. The most recent releases landed on October 15, 2026 and October 24, 2026 respectively.
| Parameter | The Grid | LetterRack |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, iPod — better | iPhone, Apple Watch |
| Requires iOS | 15.6 — better | 26.4 |
| Further details — not scored | ||
| Size | 38 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | Javier Franco | Vincent Launay |
In-app purchases
The Grid
No in-app purchases
LetterRack
- Xtremagic Pass$3.991 Month
- Xtremagic Pass$24.991 Year
- Full Access (One-Time Purchase)$7.99
