Support
We're here to help with billing, accounts, the Long Horizon desktop app, and any other questions you may have.
Email support
Send us a message and we'll get back to you as soon as we can.
Response time
We typically respond within 24 hours on business days.
Best for
- General product questions
- Billing and refunds
- Account access
- Privacy and legal inquiries
Desktop app
Long Horizon runs on your machine — here's how to get unstuck.
Before you write in
- Read the desktop documentation for installation, MCP, and debugging
- Update to the latest app version from our download page
- Confirm macOS permissions for automation, files, and network if prompted
- Retry after a full quit and relaunch
Include in your email
- App version and operating system version
- What you expected vs. what happened
- Screenshots or short screen recording if helpful