Other than Asana and Trello, what do people use to plan / track projects?

We have a number of large projects that require multiple parties to be involved. What do people use to best manage and track projects involving external members of the team 👌
Simon Hudson@Cheeze Executive Office · Edited
Bitrix24 is great. It's free, like Trello and Asana, but has client management, Gantt, quotes and invoices that none of the free PM solutions offer. You can create 'extranet' workgroups for external use access. Collaboration via email is supported as well. See https://www.bitrix24.com/feature...
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