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Activating your license

Welcome to RemoteX Pro! This guide walks you through activating your license for the first time.

!!! tip "What you'll need" - Your license key (sent in your purchase email from LemonSqueezy) - The email address you used when buying - An internet connection (required for the first activation only)

Download and install

Your purchase email from LemonSqueezy contains a Files link. Click it to download RemoteX-Pro-VERSION-x86_64.AppImage.

Then make it executable and run it:

chmod +x RemoteX-Pro-*-x86_64.AppImage
./RemoteX-Pro-*-x86_64.AppImage

!!! info "System requirements" None — the Pro AppImage is self-contained (Python, Qt, and every dependency are bundled). If your distro reports a missing Qt platform plugin on launch, install libxcb-cursor0: ```bash # Ubuntu / Mint / Debian sudo apt install libxcb-cursor0

# Fedora
sudo dnf install xcb-util-cursor
```

The Pro AppImage is self-contained — all SSH libraries (Paramiko, cryptography, etc.) are bundled. No pip install needed.

Step-by-step activation

  1. Open RemoteX — make sure you're running the Pro build, not the Free build. (What's the difference?)

  2. Open Preferences with Ctrl + , or via the hamburger menu → Preferences.

  3. Scroll to the License section.

    License section in Preferences

  4. Paste your license key in the License key field.

  5. Enter the email you used at purchase in the Email field.

    !!! warning "Email must match exactly" We compare what you type against the email LemonSqueezy has on file for the purchase. If it doesn't match, activation is refused — no slot is consumed.

  6. Click Activate Pro.

  7. Within a few seconds, the dialog refreshes and shows:

    • Your license type (Yearly)
    • The expiry date
    • Your activation count (e.g. 1 / 3)

That's it — every Pro feature is now unlocked. SSH machines, multi-machine buttons, themes, backup, MCP server, all available.

What happens next

When What happens
Right after activation All Pro features unlock immediately
Every 24 hours RemoteX silently re-validates your license online (no UI, no slowdown)
30 days before expiry A toast warns you that your subscription is about to renew
Day of expiry LemonSqueezy renews your subscription automatically — nothing to do
If renewal fails A 3-day grace period kicks in before Pro features lock

If your subscription lapses, your data is never deleted. Buttons, machines, settings — all preserved. Re-activate any time and everything comes back.

Troubleshooting

"This license key is registered to a different email."

The email you typed doesn't match the one on the LemonSqueezy purchase. Double-check the receipt email you got from LemonSqueezy and use that exact address (case doesn't matter, but typos do).

"You have reached the maximum of 3 activations."

You've used all 3 device slots for this license. Open RemoteX on one of your active devices, go to Preferences → License → Deactivate, then come back and activate here.

If you can't access any of your previously activated devices (lost laptop, OS reinstalled without deactivating, etc.), contact support — we'll free the orphaned slot from the dashboard.

See the full License & Devices guide for every scenario.

"Network error — could not reach the license server."

The first activation requires an internet connection (we check the key against LemonSqueezy). Make sure RemoteX can reach api.lemonsqueezy.com — corporate proxies and strict firewalls may block it.

After the first activation, RemoteX works offline. We only re-check once every 24 hours, and there's a 3-day grace period if the network is down.

I don't see a "License" section in Preferences

You're running the Free build. The Free build has no license system — there's nothing to activate. To use Pro, download the Pro build and run it instead. Your buttons, machines and settings will be picked up automatically (same config directory).

Where to go from here

Need anything else? Email support — we read every message.