Install Host
Install Direct Control Host on the computer you want to control.
Get connected in minutes
Three simple steps.
Phone controller URL
Detecting local URL...
Open Controller
Launch the iPhone app or open the web controller from the local URL.
Connect and control
Pick your host, confirm quality, and take control instantly.
Why Keystone
Distance should feel engineered.
The bridge is the product
A diagonal control bridge explains host, controller, route, quality, telemetry, and pricing without a generic SaaS hero.
Every claim is selectable
Route, capture profile, app target, and connection details move together so the page feels like a working product surface.
Premium, but concrete
Tactile buttons, screen previews, and phone mode are visible before the user has to read a long feature list.
Quality bench
Tune the session like hardware.
Keystone keeps the high-speed claims attached to real controls: route, capture profile, app target, bitrate, packet loss, and the controller surface.
Up to 120 FPS
High-refresh capture
4K+ ready
Native or custom
Encrypted route
Private WebRTC sessions
No open ports
NAT traversal included
Route
Capture quality
Selected surface
120 FPS
Frame rate
12 ms
Latency
45 Mbps
Bitrate
Start Host Mac
Approve screen capture, choose a quality profile, and publish the controller URL.
Apps
Host where you work. Control where you are.
Start Host Mac
Approve screen capture, choose a quality profile, and publish the controller URL.
Windows host
A workstation host with the same route, capture, and permission model.
Linux host
A practical path for labs, dev machines, render boxes, and servers.
Open Controller Phone
A phone-first controller for touchpad, keyboard, route state, and quick actions.
Security
Private routes, visible controls.
Encrypted media
Control and media paths are carried through encrypted WebRTC sessions.
Private by default
Direct peer and LAN paths are preferred before relay fallback.
No router work
NAT traversal and relay fallback avoid exposing the host to open ports.
Visible state
Latency, packet loss, quality, route, and controller URL stay visible.
Pricing
$8 monthly, or $80 yearly.
Monthly is $8 x 12 = $96. Yearly is $80, so annual billing saves $16. That is two months free.
Monthly
$8
per month, billed monthly
- All platform apps
- Direct peer sessions
- Up to 120 FPS and 4K+ profiles
Yearly
$80
per year, equivalent to $6.67/mo
- Save $16 every year
- Two months free
- Same full product access