Download Links:

WebAcappella FX (April 2019)(Mac - Windows)

WebAcappella GRID (1.6.20 - 2016)(Mac - Windows)
WebAcappella GRID is no longer updated since January 2023 and no technical support is now provided

WebAcappella 4 (2010)(Mac - Windows)
WebAcappella 4 is no longer updated since 2017 and no technical support is now provided
Works only on MacOS 32Bits (High Sierra) and Windows 32Bits (PHP 5.6)

WebAcappella Market (2018)(Mac - Windows) - requires PHP 7.4 and MySql
WebAcappella Market is no longer updated since 2021 and no technical support is now provided