Apps similar to Productivity Challenge Timer include Pomodorolm, which is free and open source. Other options are Tomato Pomodoro, Pomatez, Presto Time Tracking and pomo. There's no shortage of Pomodoro Timers like Productivity Challenge Timer, with more than 25 alternatives for the web, Mac, Linux, Windows and Android.
ClockAura is a free hub of online timers that work in any browser with no sign-up and nothing to download. It includes a Pomodoro timer with auto-cycling focus and break rounds, countdown timers, a stopwatch, HIIT/Tabata interval timers, an egg timer, a full-screen classroom...
Browser-based Pomodoro tool for solo sessions or group focus rooms. Members can follow one shared timer or work independently while seeing who is focusing, manage tasks with effort estimates, review stats and streaks, chat between sessions, and view a leaderboard.
