A side-by-side comparison based on expert reviews and real community consensus.
Updated April 2026
These tools aren't really competing — they serve fundamentally different problems. Teamwork is a professional services platform that happens to do project management; Trello is a task board that happens to be free. If you're running an agency, consulting practice, or any team that invoices clients, Teamwork's built-in billing, invoicing, and proofing tools eliminate the need for two or three additional subscriptions. But if your biggest problem is getting a skeptical team to adopt any tool at all, Trello's 5/5 ease-of-use rating from the r/projectmanagement community isn't an accident — it genuinely requires zero training.
Teamwork is the top pick for agencies and consultants managing client projects, with built-in billing, invoici
Buy at AmazonFull review →Trello's Kanban-first design is the easiest PM tool to get a team actually using, no training required. Rated
Buy at AmazonFull review →This is the single biggest differentiator and the reason these tools aren't really head-to-head competitors. Teamwork lets you track time, generate invoices, and manage client billing without leaving the app. For an agency billing 10 clients a month, that's not a nice-to-have — it's the difference between one subscription and three. Trello has no native billing functionality whatsoever, and adding it via Power-Ups means paying for and managing yet another tool.
Trello earned a 5/5 ease-of-use rating from the r/projectmanagement community, the highest of any tool in the comparison. That matters because tool adoption is the silent killer of PM software rollouts — teams buy Teamwork or Asana, spend weeks configuring it, and then watch people go back to email. Trello's 'to do / doing / done' model maps directly to how humans already think about work, which means zero training and same-day adoption. Teamwork is more powerful, but power means nothing if your team won't open the app.
Teamwork's Slack integration is rated 3.5/5 by community testers — mediocre for a tool that positions itself as a collaboration hub. Trello's Slack integration is rated 4.5/5, and it goes beyond notifications: you can create Trello cards directly from Slack messages, which is genuinely useful when client feedback lands in a thread and you need to capture it immediately. If your team's primary communication channel is Slack, this gap will frustrate you daily with Teamwork.
Trello's feature depth is rated 3.5/5 — it's a Kanban board at heart, and complex sequencing, Gantt charts, resource tracking, and cross-project visibility all require Power-Ups that add cost and complexity. Teamwork ships with Gantt, Kanban, table, and timeline views natively, plus robust permissions for multi-client environments. The moment your projects involve dependencies, multiple teams, or any reporting beyond 'what's on the board,' Trello starts requiring workarounds that defeat the purpose of its simplicity.
Teamwork vs Trello, aspect by aspect.
Native billing, invoicing, and time tracking built in
Rated 5/5 — teams are live same day, no training
Rated 4.5/5 — create cards from Slack messages natively
Gantt, Kanban, table, timeline — all included natively
Robust permissions, proofing, reporting for complex teams
Both deliver here. Free tier includes billing and time tracking — rare
Built for isolated client workspaces with granular visibility
85/100 consensus; PCMag Editors' Choice for client work