What runs where

Three ways to run it. One security model.

The browser app needs nothing installed and works everywhere. The desktop app adds real mouse and keyboard control on Windows, macOS, and Linux. The same package runs headless where nobody is at the machine.

What each way of running Reallexi Connect can do. Consent, device keys, and encryption work the same in all three.
Capability	Browser app	Desktop app	Headless host
Platforms	Windows, macOS, Linux, Android, iPhone, iPad	Windows, macOS, Linux	Windows, macOS, Linux
Anything to install	No	One download, plus Node.js 20 or later	The same download, plus ffmpeg
Share this screen	Yes, you pick the screen, window, or tab each time	Yes, and it captures the screen itself	Yes, with no browser open and no one present
Watch an approved screen	Yes, including Use as display	Yes, through the browser app	Not its job — it is the machine being reached
Move the mouse and keyboard on this machine	No, a web page cannot do this	Yes, after the system permission prompt	Yes
How a session gets approved	You approve each request as it arrives	You approve each request, from the tray	Only requesters the account approved in advance
Release state	Production	Development preview, not yet signed	Development preview, not yet signed

Evaluate the connection, not the slogan

Questions worth asking of any remote-access service.

Identity, consent, data path, authorization, and billing criteria.
Decision criterion	Reallexi behavior	What to verify
Host consent	The host accepts each named viewer, chooses the surface, and grants exact controls.	Can the host see participants and stop locally?
Device identity	Every enrolled device signs requests with its own non-exportable key.	Can one device be revoked independently?
Transport	WebRTC is direct-first, with authenticated encrypted TURN fallback.	Who has session keys and can decrypt content?
Session authority	One-use fingerprint-bound tickets and renewable leases constrain the session.	Are identities and permissions short-lived and bound?
Commercial clarity	Price, cadence, device limit, and concurrency are shown before checkout.	Are renewal and limits clear before payment?