Flexible interval length.
25 is the default. A scroll wheel lets you dial any length from 25 to 120 minutes in 5-minute steps. Match the interval to the task, not the other way around.
The Pomodoro technique
The 25-minute rule, updated for how you actually work.
Pomodoro is the most popular focus technique in the world, and for good reason. It also hasn't really been updated since 1987. This page explains what it is, why it works, and what a modern version looks like.
What is the Pomodoro technique?
The Pomodoro technique is a time-management method invented by Francesco Cirillo in the late 1980s, while he was a student at Guido Carli International University in Rome. Frustrated by his inability to focus on his studies, he timed himself with a tomato-shaped kitchen timer (pomodoro is Italian for tomato), committing to work without interruption until it rang. The basic rule: 25 minutes on, 5 off. After four pomodoros, a longer break of 15 to 30 minutes.
It became a phenomenon in the 2000s through productivity blogs, Lifehacker culture, and eventually a shelf of books and apps. Today "Pomodoro" is one of the highest-volume productivity search terms on the web.
Why the 25-minute block works
Three reasons, all well-supported in cognitive psychology. First, the activation cost of starting a task is the single biggest obstacle to getting it done; 25 minutes feels low enough to commit to even when you're resistant. Second, once you're in motion, 25 minutes is long enough to reach the "deep" phase of attention where the good work happens. Third, the predictable bell creates a reward moment that your brain begins to anticipate, which over time lowers the activation cost further.
The break is not optional. The consolidation that happens during a 5-minute pause is part of why the technique works. If you skip breaks, you're doing timed work, not Pomodoro.
Where the original rule breaks down
Rigid 25-minute blocks assume an evenly-energetic brain across the full day. Real brains don't work that way. Deep creative work often benefits from longer intervals once you've reached flow; low-energy admin work benefits from shorter ones. ADHD brains in particular fight rigid timing. And the original rule has nothing to say about mood, energy state, or the difference between generative work and reactive work.
What Catch the Ghost changes
Catch the Ghost keeps the Pomodoro core (focused intervals, predictable rewards, scheduled breaks) and updates four things that the 1987 version doesn't address.
Deep Focus vs. Shallow Focus.
Two modes with their own session lengths and coin math. Different kinds of work deserve different kinds of timers.
13 moods.
Tell the app where your energy is before you start. It biases session length and pacing accordingly. The 1987 version assumes every Monday morning is the same.
A reward the brain actually wants.
Instead of a bell, a ghost. A historical figure reveals itself, pixel by pixel, over the length of your session. The reward is aspirational, collectible, and the brain looks forward to it in a way it doesn't look forward to a buzz.
Common questions
Pomodoro, in short.
What is the Pomodoro technique?
The Pomodoro technique is a time-management method invented by Francesco Cirillo in the late 1980s. You work in focused intervals (traditionally 25 minutes), take a short break (5 minutes), and after four intervals take a longer break (15 to 30 minutes). The name comes from the tomato-shaped kitchen timer Cirillo used as a student.
Why does 25 minutes work?
It’s short enough to feel doable when you’re resistant to starting, long enough to enter deep focus before the bell rings, and it creates a predictable reward moment at the end that the brain looks forward to. But 25 is a heuristic, not a law. Many people do better with 15 or 45 depending on task and energy.
Is Pomodoro good for studying?
Yes, and it’s one of the best-supported study structures in cognitive psychology. Spaced intervals with active recall during the work block and consolidation during the break outperform marathon study sessions at equivalent total time.
How is Catch the Ghost different from a regular Pomodoro timer?
A regular Pomodoro timer rings. Catch the Ghost rewards. Every completed session earns coins, extends your streak, and reveals a historical figure pixel by pixel over the length of the session. Plus flexible interval lengths, 13 moods, and a separation between Deep Focus and Shallow Focus.
Try the modern version.
