Yes and No.
ZeXtras Suite is a modular solution, and each module has its own pricing. Some modules are paid, some modules are distributed for free in bundle with other modules and some modules are free and usable without an ongoing license:
|ZxPowerstore||Free||Bundled with ZxBackup|
|ZxAdmin||Free||Available in the ZeXtras Bundle offer|
|ZxChat||Free||Does not require any license|
The ZeXtras Migration Tool, which is not a ZeXtras Suite module but a stand-alone software, is also free.