We replace cPanel AND WHMCS.
For the price of just one of them.

Yes — on every paid plan, forever. Free has a 5-account limit because that's the typical individual / hobbyist range. The moment you upgrade to Starter, you can host as many sites as your server can handle. We never charge per account.

A server is one machine (physical or virtual) running the Opterius agent. Multiple IP addresses, multiple domains, and multiple hosting accounts on the same machine all count as one server. We don't charge extra for IPs.

A typical hosting company on cPanel WHM (50 accounts) + WHMCS pays $73/mo per server. Opterius Starter is $19/mo and includes Commerce (the WHMCS replacement) for free. That's $648 saved per year, per server.

No. The Free tier is a one-command install on any VPS. No signup, no card, no tracking. Paid plans only require billing details when you're ready to upgrade.

Yes. Opterius ships with a built-in cPanel backup importer. Upload a cPanel full backup file and it restores files, MySQL databases, email accounts (with passwords), DNS zones, SSL certificates, and cron jobs automatically.

Opterius Commerce is our full WHMCS replacement — storefront, customer portal, billing, support desk, domain registrar integration. It's coming Q3 2026 and will be included free with every paid Panel plan. Until then, Panel works with WHMCS via our official free WHMCS module.

No. One license = one panel + N agents managed from that panel. This keeps your hosting business unified and lets you take full advantage of cross-server features like centralized SSL management, account migration between servers, and unified WHMCS / Commerce integration.

Upgrade anytime from the panel — proration is automatic. If you start on Starter and add a 6th server, just upgrade to Business. No downtime, no migration, no penalty.