Four pieces that already know about each other.
The point is not that Bothy has chat and boards and time. It is that a ticket number in a message is the same ticket the hours were logged against, and the same line on the invoice.
Hours in, one invoice out.
Everyone logs time the same way. Where it goes differs: staff hours roll into project cost, contractor hours into a payable, and both into what the client is billed.
The conversation stays attached to the work.
Channels for projects, direct messages for everything else, and a daily log the crew actually reads because it is one note a day.
Work moves through four columns.
Not a project management system. Four columns, a ticket per piece of work, and enough structure that a month of it stays readable.
Write it down once.
If you have explained something twice, it belongs here. Docs is what a new person reads instead of asking the same four questions.
The door is open.
Thirty days free for a team, free forever for one person. If it does not replace at least three things you pay for, do not keep it.