Acheron
Pricing

Free to run.
Pay to reach it anywhere.

The app and everything on its canvas are free. The paid part is a service we operate: getting your phone and your other computers to your agents from anywhere, with nothing to set up. Your agent subscriptions and model usage stay with their providers.

Acheron

Free

The whole app, on as many computers as you like.

  • The canvas, Overseer, review wires, saved conversations and summaries
  • Claude Code, Codex, Charon, Cursor and Gemini sessions, locally or over SSH
  • Browser panes, usage breakdowns, spoken updates and activity history
  • The iOS companion
  • Your other computers and your phone on the same network, or over Tailscale or your own VPN

Available now for Mac · Ubuntu and the iOS companion coming soon

Download for Mac

Acheron Connection

$6 / month

Or $50 a year. Your agents, from anywhere. Planned: not available yet.

  • Phone notifications when an agent needs approval or finishes, wherever you are
  • Reach your computers from your phone or another computer on any network, with no VPN, port forwarding or router setup
  • An end-to-end encrypted backup of your workspaces and settings, restored on a new computer with your recovery key (beta)
  • Encrypted end to end: our relay carries only SSH traffic it cannot read, and backups are locked before they leave your computer
  • Up to 10 computers and phones, and support from the people who build Acheron

Cancel any time. Your agents never stop, and connecting on your own network keeps working.

Early access

Hear what is next.

Acheron for Mac is available now. Leave your email and we will write when Ubuntu and iPhone builds are ready, and when Connection opens. No newsletter, and your address is used for nothing else.

Do I need Connection?

Not if your phone and computers can already reach each other: the same Wi-Fi, an office network, or Tailscale. Connection is for everywhere else, such as checking on agents at home from a café or from your phone on cellular, and for phone alerts, which need a server to reach your phone.

What can the relay see?

Which of your devices are connected, when, and how many encrypted bytes pass. Never your terminals, prompts, code or project names: the encryption runs between your own devices, and each one checks the other’s key.

What is in a backup?

Your workspaces and their layout, which conversation each pane resumes, your settings and preset launchers. Never API keys, SSH keys or tokens: those are left out before anything is encrypted. Terminal history and transcripts stay on your computers.

Can you read my backup?

No. It is encrypted on your computer with a key that never reaches us, and we store only the locked file and its size. Your other paired computers receive the key when you pair them. Keep the recovery key Acheron shows you: without it and without another paired computer, nobody can restore the backup, including us.

What happens if I cancel?

Connecting from anywhere, phone alerts and online backup stop at the end of the paid period. Everything else keeps working: the app, your agents and their sessions, the backups it keeps on your computer, and connecting on your own network or VPN.

Do agents run on your servers?

No. Agents, terminal history, projects and conversations stay on your computers. Acheron does not resell model usage; you keep your Claude, Codex or other subscriptions.

How many computers and phones?

Up to 10 in total, for one person. Every one of them can reach the others.

When does it open?

After a small paid beta. Early-access sign-ups hear first, and the price may change before then.