The Grid vs Letreo
Price, ratings, monetisation and update history for both apps, side by side โ 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!
Letreo
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Letreo turns your iPhone into three stage tools: a real LED marquee, a show light and a teleprompter. Everything runs on the device, with no account, no ads and no internet. A REAL LED MARQUEE This is not scrolling text with a filter over it. Letreo draws a dot-matrix panel dot by dot at 120 Hz, and the panel's resolution changes with the font size, the way it does on a physical sign. Six letter styles; neon, gradient, rainbow, pulse and flicker effects; direction and speed however you like them. FULLSCREEN STAGE One tap and the marquee takes the screen in landscape, at maximum brightness, with the display held awake. Turn the iPhone, raise your arm. While you adjust things, the preview stays pinned at the top of the screen and reacts live. You set the sign by looking at the sign, not at a menu. TELEPROMPTER Paste your script, pick the reading speed and the font size, and open the stage. A reading line marks where you are. Mirror flips the text for teleprompter glass or a mirrored camera, and it is free. On stage, tap pauses, drag adjusts the speed and double tap exits. The app does not use the camera. SHOW MODE Your phone becomes a party light: static, blink, strobe, rainbow, breathe, and Beat, which listens to the music through the microphone and pulses along. Ready-made presets for White, Strobe, Rainbow, Beat, Breathe and Police. FLASH IN PHASE WITH THE SCREEN Pick the output: screen, flashlight, or both. The flashlight fires in the same phase as the screen, with a frequency ceiling and an integer divider, so the flash does not stall or drift from what you see. Beat has hysteresis, so it does not jitter when the music sits at the threshold. With Flash as the only output, the color control goes away: the LED is white. And it is the iPhone's physical flashlight strobing on its own while you keep working the controls, something a website open in a browser cannot do on iOS. MARQUEE PRESETS Party, Sale, Urgent, Welcome and Birthday in one tap. The app remembers your last setup for the next show. In 10 languages. Built for concerts, parties, events, stadium stands, shop windows, airport arrivals and video recording. Warning: Show Mode produces intense flashing lights. Use with care if you are photosensitive.
Screenshots
Verdict
The clearest difference is update cadence: Letreo at every 5 weeks against The Grid's every 3 months. The Grid's advantage is device support (3 vs 1) and iOS requirement (15.6 vs 26.0). On price, ads and in-app purchases there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
The Grid ships an update every 3 months, Letreo every 5 weeks. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.
| Parameter | The Grid | Letreo |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months | Every 5 weeks โ better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod โ better | iPhone |
| Requires iOS | 15.6 โ better | 26.0 |
| Further details โ not scored | ||
| Size | 38 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Javier Franco | Roque Ribeiro |
In-app purchases
The Grid
No in-app purchases
Letreo
No in-app purchases









