Be Focused by XWaveSoft - Simple Pomodoro timer in your Mac's menu bar
Tomato Timer - TomatoTimer is a flexible and easy to use online Pomodoro Technique Timer
FocusList - Daily planner & focus timer based on timeboxing and pomodoro
Tasklog App - Tasklog App is an agile productivity software designed to meet the needs of current world freelancers.
PomoPlanner - PomoPlanner.app is a pomodoro-based daily planner webapp that allows you to plan and track your main daily tasks, mini-tasks, physical exercise but also to take notes on things you're grateful about, things you've learned and more!
YAPA - Pomodoro timer