Requirements

Before you install GeoSync Pro, take a minute to confirm your server meets the requirements below. Most WHMCS hosts already do — the ionCube Loader is the one worth checking first, because GeoSync Pro will not run without it.

Server and software

Requirement	Details
PHP	8.2 or newer (runs on 8.2, 8.3, 8.4 and 8.5)
WHMCS	8.13 or newer, or 9.x
ionCube Loader	13.0.2 or newer (see below)
PHP extensions	curl, json, zip
License	An active GeoSync Pro license
Outbound HTTP	Access to the ip-api.com geolocation service

The ionCube Loader

GeoSync Pro ships as an ionCube-encoded build, so your server needs the ionCube Loader — a small, standard PHP extension that runs protected commercial software. It is the same loader WHMCS itself requires, so a server already running WHMCS almost always has it and you rarely need to install anything new.

You need ionCube Loader 13.0.2 or newer. The exact version tracks your PHP version — WHMCS on PHP 8.2 uses 13.0.2, PHP 8.3 uses 14.4.0, and newer 15.x loaders work too. One encoded build runs on every supported PHP and loader version, so there is nothing to match up.

GeoSync Pro will not run without ionCube

If the loader is missing or too old, GeoSync Pro's encoded pages won't load at all. Ask your host to enable ionCube Loader 13.0.2 or newer for your PHP version, then reload.

About the geolocation service

To show a visitor their local currency, GeoSync Pro needs to know which country they're in. It works this out from the visitor's public IP address using the ip-api.com geolocation service, so your server needs to be able to make outbound requests to it.

Privacy

Only the visitor's public IP is sent to the lookup service — no credentials and no personal data. GeoSync Pro itself stores only anonymous, aggregate counts; it never keeps IP addresses.

Why a license

GeoSync Pro requires an active license — currency localisation is licence-gated. You enter your key after activation — see Installation — and manage it later under Addons → GeoSync Pro → Settings → License. See Licensing for how the license types work.

How to check

You don't need to guess at any of this:

• PHP version and extensions — open Utilities → System → PHP Info in the WHMCS admin, or ask your host. Confirm PHP 8.2+ and that curl, json and zip are loaded.
• ionCube Loader — the same PHP Info page lists the ionCube Loader and its version if it is installed. If you can't find it, it isn't enabled.
• WHMCS version — shown in the WHMCS admin footer, and under Help → System Health Status.
• Outbound HTTP — most hosts allow this by default; if currency detection later doesn't work from a public IP, ask your host whether outbound requests are blocked.

Ready to install?

Once your server checks out, head to Installation to activate and license the module.