Light4Events vs Grall
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Light4Events
Transform your smartphone into a dynamic visual element at compatible events. Participate in synchronized light shows and interactive content, enhancing the collective experience for concerts, shows, and commercial events. The more users, the grander the effect.
- Synchronized visual effects
- Smartphone as animated pixel
- Interactive content
- Public light canvas
- Camera flash activation
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Avec Light4Events, vous devenez acteur des évènements auxquels vous assistez. Que ce soit en concert, spectacle, opération commerciale, présentation d'entreprise.. Au sein de tout évènement compatible Light4Events, lancez l'application, entrez dans la section Live et laissez-vous guider. Votre écran s'animera alors d'effets visuels au même rythme que tous les écrans autour de vous. Plus vous serez nombreux à utiliser LightEvents, plus l'effet sera grandiose. ---------------- With Light4Events, you become part of the show. With the app, you smartphone becomes an animated pixel and the public a huge animated light canvas through the show. Our app is all about fun, we work with our partners and light professionals to create visual effects through the public and make your experience even better and interactive. Prepare for texts, pictures, colors, interactive contents and flashes for an awesome result. We ask to access your phone camera, but only to activate the flash. Please visit our website www.light4events.fr for more information. Any question? Send us an email at contact@l4e.fr
Grall
This app provides local information by scanning your surroundings via satellite, Bluetooth, and Li-Fi. Discover points of interest, shopping, and smart city features. It also offers a Geo-Vocal mode for navigation and an offline mode.
- Local information discovery
- Satellite, Bluetooth, Li-Fi scanning
- Geo-Vocal navigation
- Offline mode
- Smart city integration
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La solution d’information de proximité pour mieux comprendre ce qui nous entoure. Grall est un lecteur multimédia et multiprotocole permettant de lire des informations par satellite, bluetooth, et Li-Fi : la nouvelle technologie d’envoi d’informations par la lumière. Scannez l’endroit où vous vous trouvez et découvrez les informations liées à votre position : lieux touristiques, shopping, smart-city… Et pour l’accessibilité : profitez du mode Geo-Vocal pour vous guider. Notre solution inclut également un mode hors connexion.
Screenshots
Verdict
The clearest difference is review sentiment: Grall at 100% against Light4Events's 50%. Grall also leads on update cadence (weekly vs every 2 months). Light4Events's advantage is iOS requirement (12.4 vs 15.1). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.
Light4Events ships an update every 2 months, Grall weekly. The most recent releases landed on June 25, 2026 and September 20, 2026 respectively.
| Parameter | Light4Events | Grall |
|---|---|---|
| Price | Free | Free |
| Rating | — | 1.0 (1 ratings) — better |
| Positive reviews | 50.0% of reviews | 100.0% of reviews — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 2 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.4 — better | 15.1 |
| Further details — not scored | ||
| Size | 9 MB | 130 MB |
| Age rating | 4+ | 4+ |
| Developer | Light4Events | Glorytech |
Customer experience
Light4Events
Grall
In-app purchases
Light4Events
No in-app purchases
Grall
No in-app purchases
