Casambi vs Grau
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Casambi
Effortlessly personalize your lighting with wireless control. Create custom scenes, animations, and automate your lights from a smartphone or tablet. Seamlessly manage multiple devices and share access with others.
- Wireless lighting control
- Customizable scenes and animations
- Daylight and timed control
- Visual control from photos
- Network sharing with access rights
- Control up to 250 devices per network
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People today want to personalize their lighting experience and to do so in an instant. Casambi’s simple wireless lighting control system opens up a whole new world of possibilities in this respect. This uncomplicated yet feature-rich application enables you to seamlessly control your lighting from a smartphone or tablet. From daylight control to timed scenes, animations, and more… everything can be configured in this app. It contains everything you need for intelligent, flexible, and fully automated lighting controls. At your fingertips. Easy Commissioning: All Casambi-enabled products are configured and used with the Casambi app. The app’s intuitive design makes commissioning tasks so simple that they can be easily handled by nearly anyone. The pairing process is quick: The app will search for all powered Casambi-enabled devices within Bluetooth range of your mobile device. Control your entire lighting system from one app: Casambi provides one platform from which to control multiple components from luminaires to sensors, blinds, and more. Within the Casambi app, it is possible to create luminaire groups within a network, and then create multiple networks that can all link together. A single Casambi network can contain up to 250 devices and an endless number of networks can be created in a single site. From a single room, it is easy to upscale to building-level functionality and even expand to outdoor lighting. Control your lights from a photo: The app allows you to control lighting visually from a photo. Simply take a photo of the room in which the lights you wish to control are, upload it to the Gallery, and drag the desired control commands over the lighting fixtures within the picture. No need to remember which luminaire is which, you have a visual guide for decision-making ease. Create scenes for different lighting situations: The Scenes tab allows you to create and recall personalized lighting set-ups. One scene can control any variation of luminaires in your network, and luminaires can be used in multiple scenes. From simple lighting scenarios (such as circadian or daylight scenes) to animated and timed scenes, virtually any set-up can be configured, saved, and recalled in the app. Share your network and allow other devices to control your lighting: It is possible to control access rights to your lighting network and to define who interacts with it. An assigned ‘administrator’ can make all network changes and give access rights to new users. A ‘manager’ can make changes to all lighting control functionalities but cannot get access to passwords or decide who can access the network. A ‘user’ can only use the network but not make any changes. If you have several users and devices using the same network, any changes made with one device will be automatically adopted across all other devices using Casambi’s cloud service.
Grau
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The Grau app is the easiest and most intuitive way to control your Grau luminaires. At the tap of a finger, you can create and program ideal light settings for every mood, space, time and situation. Program and group your lamps in one view: The Grau app lets you see all your Grau lamps in one view, build lamp groups, and program both individual and group settings. With a tap or slide of your finger, you can switch lamps on and off, adjust brightness, and tune color temperature. Create and name groups according to room or situation, and coordinate dimming, color, and temperature settings. Program your lamps via gallery view: For visual control of your lighting, take a picture of your lamp(s) and room(s), save in the Gallery, and integrate luminaire control in the photo(s). Create and time-set light settings and scenes: Use the Grau app to program and save light scenarios for every mood and situation. Set the light right for working, meeting, dining or downtime and save the settings as a scene. Then simply select the scene you need with one tap. Grau timer function lets you configure lamps and lighting scenes according to time, date, or sunrise / sunset. Share your light network and lighting control: Grau has four different levels of sharing and access control. You can decide if your network is open to everyone, or if others need a password to access. If you have several users and devices using the same network, all changes made with one device will be automatically updated to the other devices via the Grau cloud service.
Screenshots
Verdict
The clearest difference is update cadence: Casambi at monthly against Grau's every 3 months. Grau's advantage is iOS requirement (13.0 vs 15.6). 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. Neither carries in-app purchases, so what you see is what you pay.
Casambi ships an update monthly, Grau every 3 months. The most recent releases landed on October 23, 2026 and October 25, 2026 respectively.
| Parameter | Casambi | Grau |
|---|---|---|
| Price | Free | Free |
| Rating | 3.5 (15 ratings) — better | — |
| Positive reviews | 46.7% of reviews | — |
| Number of ratings | 15 — better | — |
| Update frequency | Monthly — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod, Apple Watch | iPhone, iPad, iPod, Apple Watch |
| Requires iOS | 15.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 68 MB | 33 MB |
| Age rating | 4+ | 4+ |
| Developer | Casambi Technologies Ltd | Grau GmbH |
In-app purchases
Casambi
No in-app purchases
Grau
No in-app purchases









