| Hardware, editions and installation |
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| Nabu Casa (company) | Official | Nabu Casa's About page says it was founded in 2018 by the founders and core contributors of Home Assistant and is the official provider of Home Assistant products and services. The page lists Nabu Casa Inc. in Rohnert Park, California, USA, and says the company is independently owned with no venture capital or private equity money. It profiles 27 team members and gives no total headcount. | Nabu Casa about Nabu Casa home page |
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| Home Assistant Cloud / Home Assistant Link | Unconfirmed | The subscription service. Nabu Casa's Link page is titled "Home Assistant Link (formerly Home Assistant Cloud)", but its text and the 2 October 2026 announcement say the name changes on 2 December 2026 with the 2026.12 release, and Home Assistant's Cloud page says the rename is planned for that date. Nabu Casa's home page also says "formerly Cloud, to be renamed Link". On the date we checked (11 November 2026) the two names are therefore both in use, and the rename is announced rather than complete. Subscribers keep the same subscription and no action is needed. | Nabu Casa: Cloud becomes Link Nabu Casa: Link page Home Assistant: Cloud page Home Assistant blog, 2 Oct 2026 |
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| Cloud price | Official | Nabu Casa's Link page shows USD 6.50 per month or USD 65.00 per year, tax not included, described as a year for the price of 10 months, and says prices can also be selected in CAD, EUR and GBP (those figures were not shown on the page we read). The FAQ gives the same USD figures, says prices depend on location and currency, and says there is no lifetime option. Prices are as shown on the pages we read on 11 November 2026 and may change. | Nabu Casa: Link page Nabu Casa FAQ |
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| Cloud free trial | Unconfirmed | Nabu Casa's Link page and FAQ state a 31-day trial, and the Link page says no card details are required. The FAQ also says access is lost if no payment method is added by the end of the trial. Home Assistant's Alexa and Google Assistant docs pages say "30-day free trial". We could not reconcile 31 and 30 days from official pages. | Nabu Casa: Link page Nabu Casa FAQ HA Alexa docs HA Google Assistant docs |
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| Home Assistant Green | Official | Hub with Home Assistant OS preinstalled. Rockchip RK3566 (quad-core Cortex-A55 at 1.8 GHz), 4 GB RAM, 32 GB eMMC, Gigabit Ethernet, two USB 2.0 ports. It has no built-in Zigbee or Thread. Recommended price listed as USD 199 or EUR 179 (USD excludes tax, EUR includes it; retailer prices vary). Not marked discontinued; Home Assistant's Yellow end-of-life post says Green continues to sell strongly. | Home Assistant Green Yellow end-of-life post |
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| Home Assistant Yellow | Not found | Discontinued. Home Assistant announced on 15 October 2025 that Nabu Casa would stop producing it and not replenish stock. It was built on the Raspberry Pi Compute Module platform with a built-in Zigbee or Thread adapter, NVMe slot and optional PoE. The post says software builds will continue as long as Yellow can run Home Assistant. | Yellow end-of-life post Nabu Casa hardware page |
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| Home Assistant Blue | Not found | Listed on Nabu Casa's hardware page as a discontinued first hub that ran Home Assistant OS, with no support link. The Yellow post says Blue stopped production in 2022 but still gets new builds. | Nabu Casa hardware page Yellow end-of-life post |
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| Home Assistant Connect ZBT-2 | Official | USB adapter for Zigbee 3.0 or Thread, with a Silicon Labs MG24 chip, an external antenna on a base and a 1.5 m USB cable. Only one protocol can run at a time, and Nabu Casa says it does not plan to support multiprotocol on it. Recommended price USD 49 or EUR 45. Launched with a post dated 19 November 2025 as the successor to ZBT-1. | ZBT-2 product page ZBT-2 announcement |
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| Home Assistant Connect ZWA-2 | Official | USB adapter with a Silicon Labs ZG23 chip, Z-Wave 800 series, supporting Z-Wave and Z-Wave Long Range at the same time (860-930 MHz range; EU 868.4/869.85 MHz, US 908.42/916 MHz). One global model for all regions. Recommended price USD 69 or EUR 59. Its ESP32 Wi-Fi and Bluetooth antenna is inactive and no PoE is mentioned on the product page; a January 2026 Nabu Casa update mentions Wi-Fi and PoE support for the ZWA-2, which we could not reconcile with the product page. | ZWA-2 product page Nabu Casa product update, Jan 2026 |
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| Home Assistant Connect ZBT-1 | Not found | Discontinued first-generation Zigbee and Thread adapter (Silicon Labs EFR32MG21), still receiving software updates. Its page lists a free replacement for 60 months from 2 October 2024 for units from a faulty first batch sold June to October 2024. | ZBT-1 product page |
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| Home Assistant Voice Preview Edition | Official | Voice device for Assist with an ESP32-S3, an XMOS XU316 audio chip, 2.4 GHz Wi-Fi and Bluetooth 5.0, ESPHome preloaded and open-source firmware. Wake words on device: Okay Nabu, Hey Jarvis, Hey Mycroft. Recommended price USD 69 or EUR 59. The page labels it a preview edition, launched December 2024. | Voice Preview Edition |
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| Where the hardware is sold | Official | Home Assistant's product pages list retailers rather than a single Nabu Casa shop. The Green page lists shipping regions: North America (US), Asia (ships from China), Australia and Europe (including the Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Italy, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Sweden, Switzerland and the UK). The ZBT-2, ZWA-2 and Voice PE pages list distributors in the US, Canada, Australia, China and Europe, and their Buy now buttons are placeholders. Nabu Casa's own pages give no prices or buy links for hardware. A refurb program announced 23 March 2026 sells refurbished Greens in the US through AmeriDroid at USD 20 off retail. | Home Assistant Green ZBT-2 product page Nabu Casa refurb program Nabu Casa hardware page |
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| Installation methods for Home Assistant | Official | Home Assistant's installation page recommends Home Assistant OS, and also describes Container (Docker; updates are manual, no apps, and Thread and Z-Wave lack out-of-the-box support). A May 2025 post says Core and Supervised are deprecated, with support ending in release 2025.12, leaving OS and Container as the supported methods. Cloud remote access works the same regardless of how Home Assistant is installed. | HA installation Core and Supervised deprecation Nabu Casa FAQ |
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| Protocols and ecosystems |
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| Wi-Fi | Yes | Nabu Casa's own hardware is mostly wired or USB: Green uses Ethernet and USB, the adapters use USB-C. Voice Preview Edition has 2.4 GHz Wi-Fi. Home Assistant can work with Wi-Fi Matter devices over Ethernet or Wi-Fi once the Matter integration is set up. | Voice Preview Edition Home Assistant Green |
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| Bluetooth | Not mentioned | Voice Preview Edition lists Bluetooth 5.0. The ZWA-2 page says the ESP32 radio antenna there is inactive. We did not find Nabu Casa pages describing Bluetooth device support. | Voice Preview Edition ZWA-2 product page |
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| Zigbee | Official | Supported by the Connect ZBT-2 (Zigbee 3.0), the older ZBT-1 and the discontinued Yellow. The ZBT-2 page says it was tested with ZHA and Zigbee2MQTT. Green itself has no Zigbee radio. | ZBT-2 product page ZBT-2 announcement Home Assistant Green |
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| Z-Wave | Official | Connect ZWA-2 is Nabu Casa's Z-Wave adapter, with Z-Wave and Z-Wave Long Range supported at the same time. Home Assistant's installation page says Z-Wave lacks out-of-the-box support in the Container install. | ZWA-2 product page HA installation |
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| Thread | Official | ZBT-2 supports Thread (one protocol at a time). Green can act as a Thread border router when paired with a ZBT-2, though the Green page says Thread support is under development. The ZBT-2 page says it cannot be a standalone Thread border router, and Nabu Casa's repeater post says Thread border router firmware is being explored. | Home Assistant Green ZBT-2 product page Nabu Casa repeater post |
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| 433 MHz, 868 MHz sub-GHz, infrared | Unconfirmed | No dedicated Nabu Casa product for 433 MHz or infrared found on the hardware pages. The ZWA-2 operates in the 860-930 MHz Z-Wave band (EU 868 MHz), which is a Z-Wave use only. | ZWA-2 product page Nabu Casa hardware page |
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| Matter | Yes | Home Assistant's Matter page calls Home Assistant a Matter controller, run through the Matter Server app (Home Assistant OS is the only supported install type for it). It is not a Matter bridge. Thread-based Matter devices need a Thread border router, which can be Home Assistant with the OpenThread Border Router app. Multi-fabric is supported, so a device can be shared with Google Home and Apple Home. This is a Home Assistant feature; Nabu Casa's contribution is hardware such as the ZBT-2. | HA Matter integration ZBT-2 product page |
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| Matter bridges (Hue, IKEA, Aqara, SwitchBot) | Not mentioned | Home Assistant's Matter page says non-Matter ecosystems can be added through a Matter bridge, naming SwitchBot Hub 2, Aqara Hub M2, IKEA Dirigera and Philips Hue Bridge, with support varying by device. For Hue it recommends the native Hue integration because Matter exposes fewer features. | HA Matter integration |
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| Amazon Alexa | Official | Included in Home Assistant Cloud. Home Assistant's docs say the Cloud route connects Alexa in a few clicks without dynamic DNS, SSL certificate management or port forwarding, and requires a paid subscription after the trial. Manual setup is also documented. Alexa-side limits are listed on the docs page (for example alarm panel PINs and some features only in en-US). | HA Alexa docs Nabu Casa: Link page Alexa Skills store |
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| Google Assistant / Google Home | Official | Included in Home Assistant Cloud. Home Assistant's docs describe a click-through Cloud setup versus a manual route through the Google Home Developer Console, and list limits such as secure devices needing a PIN for voice control. | HA Google Assistant docs Nabu Casa: Link page |
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| Assist cloud voice | Official | Cloud supplies speech-to-text and text-to-speech for Assist, processed on Nabu Casa servers. Only audio goes to the cloud; device control stays local. A cloud voice assistant is created automatically once Cloud is connected. Nabu's page says audio is deleted after transcription and is never used to train models. The Voice PE page says Microsoft Azure processes the speech and does not retain it. Fully local voice is also possible where the language is supported. | HA cloud Assist setup Nabu page Voice Preview Edition |
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| Apple Home / HomeKit | Unconfirmed | Home Assistant's Matter page says a device can be added to several controllers including Apple Home through multi-fabric, and names Apple TV 4K and HomePod mini as Thread border routers. We did not find a Nabu Casa page for Apple Home or HomeKit support. | HA Matter integration |
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| Samsung SmartThings, KNX, MQTT and others | Unconfirmed | Not covered on the Nabu Casa pages we read. Home Assistant supports many such integrations, but we did not open an official page for them in this research, so they are left unconfirmed here. | Searched, no source |
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| Homey, openHAB, Hubitat | Not found | No Nabu Casa page mentions them in the pages we read. | Searched, no source |
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| Apps, integrations and developer access |
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| Home Assistant Companion app | Official | Official iOS and Android apps (also F-Droid and SideQuest for Meta Quest) with source code on GitHub, listed on the Companion download page. The page does not list macOS or Windows apps. | Companion download page |
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| Remote access | Official | Cloud adds secure access to Home Assistant from outside the home. A January 2026 update says Nabu Casa upgraded the servers remote connections route through, and the October 2026 post says a backend migration now connects users to the closest server. The cloud integration exposes cloud.remote_connect and cloud.remote_disconnect actions that automations can call. | Nabu Casa product update, Jan 2026 HA cloud integration Home Assistant blog, 2 Oct 2026 |
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| Offsite backups | Official | Nabu Casa's Link page lists offsite backups. The January 2026 update says Cloud added 5 GB at no extra cost to store the latest backup, retrievable from the Nabu Casa account, with only the user holding the decryption key. | Nabu Casa: Link page Nabu Casa product update, Jan 2026 |
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| Other Cloud features | Official | Camera and music streaming through WebRTC, webhook support, and dedicated support that covers Link features but not general Home Assistant questions. | Nabu Casa: Link page HA cloud integration |
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| Home Assistant works without Cloud | Official | Home Assistant's Cloud page says Home Assistant works fully without the subscription, and the rename post says the smart home will still work without it. | Home Assistant: Cloud page Home Assistant blog, 2 Oct 2026 |
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| Open Home Foundation relationship and funding | Official | The Open Home Foundation is a tax-exempt non-profit Stiftung based in Switzerland that owns Home Assistant. Nabu Casa was its inaugural commercial partner, a for-profit company that must contribute most of its net profits from licensed products to the Foundation (Apollo Automation joined as a second partner at the end of 2025). The Foundation has no financial obligation to partners. Purchases of partner products, such as Cloud, help pay partner fees that fund the Foundation's work. Nabu Casa's Link page says the majority of profit goes to the foundation behind Home Assistant. No profit figure is given. In 2025 all employees working on Foundation projects moved from Nabu Casa to the Foundation. | OHF structure OHF organization Nabu Casa about |
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| ESPHome | Official | Nabu Casa announced on 18 March 2021 that it was acquiring ESPHome from its founder Otto Winter and held the copyright and GitHub organization. The Open Home Foundation's April 2024 announcement lists ESPHome among the projects transferred to the Foundation. Voice Preview Edition ships with ESPHome preloaded. ESPHome ownership today is not stated on the OHF organization pages we read. | Nabu Casa has acquired ESPHome Announcing the Open Home Foundation Voice Preview Edition |
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| Open firmware and developer access | Official | The ZWA-2 page says firmware for its ESP32 and Z-Wave chip is open source, and the ZBT-2 article describes an unlocked bootloader and open-source firmware. The Voice PE page describes ESP32 and XMOS firmware as fully open source. Experimental Zigbee and Z-Wave repeater firmware can be flashed through the Open Home Foundation Toolbox site. We found no published Nabu Casa API for Cloud. | ZWA-2 product page ZBT-2 announcement Nabu Casa repeater post |
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| Number of integrations or devices | Not found | No official figure was read for this profile, so none is given. | Searched, no source |
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