The 0.10.16 version of Pomello for Mac was available to download on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. We recommend checking the downloaded files with any free antivirus. This free Mac app is a product of Tiny Nudge. The software lies within Productivity Tools, more precisely Timekeeping.
From the developer:
Pomello turns your Trello cards into Pomodoro tasks. It stays on top of your windows to help you stay focused on the task at hand. Even with the best To-Do List apps out there, it's far too easy to get distracted. Pomello helps you stay focused and on track to achieve your day-to-day tasks or life-changing dreams.
You may want to check out more software for Mac, such as DaliClock or TimeMachineGrowler, which might be similar to Pomello.
Browser plugins