The Free AI Pomodoro Timer That Adapts to Your Brain
Most pomodoro timers count down. This one pays attention. It reads your focus patterns, detects fatigue, and adapts work sessions to your brain — not the other way around.
No account needed · Works in any browser · Installs as an app
The classic Pomodoro technique was invented in the late 1980s with a kitchen tomato timer. There was no neuroscience behind the number 25. It was a guess — and for most people, it's wrong.
Your brain operates on ultradian rhythms: natural focus cycles of 80–120 minutes with rest periods in between. Your peak focus shifts with your chronotype. Fatigue accumulates across the day. A fixed timer ignores all of it.
Pomodoro tAImer doesn't use fixed intervals. It uses your actual brain signals.
Fixed timers interrupt flow
Getting cut off mid-thought doesn't just waste the moment — it costs up to 23 minutes to return to full concentration.
Everyone's brain is different
A student pulling an all-nighter and a rested senior engineer at 10 AM have completely different optimal session lengths.
No feedback loop
A dumb timer never learns. Every session is treated the same, even as your performance data accumulates day after day.
Three steps. Then it runs itself.
Pick your profile
Tell the app your chronotype (early bird, night owl, etc.) and working style. This seeds the algorithm with your baseline before it has any data.
Work — AI watches
Run the timer while you work in any app. It tracks session timing, time of day, and your cumulative fatigue automatically — no manual input needed while the session runs.
Rate it, AI adapts
After each session, a one-tap reflection updates your personal model. The next session is already adjusted. It gets smarter every single day.
Built on real neuroscience
Every feature maps to a known cognitive mechanism. No gimmicks, no noise.
Circadian rhythm engine
Session lengths scale with your natural alertness curve based on wake time and chronotype. Peak hours get longer sessions; dips get shorter ones.
Flow state detection
When you're in the zone, the break can be delayed automatically. Rate your session honestly and the app learns when you tend to hit flow — and protects it next time.
Fatigue accumulation model
Cognitive load compounds across the day. The engine shortens later sessions and recommends longer breaks as your total work hours increase.
Focus analytics
Daily, weekly, and monthly breakdowns of your focus quality, session count, and personal optima — so you can actually understand your patterns.
Adaptive session length
Exponential moving average learns your personal optimum from reflection scores. Sessions converge toward what actually works for you, not for someone else.
Streaks & achievements
A lightweight reward system to reinforce good habits without turning focus into a game. Streaks, milestones, and session records — nothing more.
Start free. Upgrade when it clicks.
- AI-adaptive timer
- Flow & fatigue detection
- Last 10 sessions history
- Weekly analytics
- Monthly & all-time analytics
- Unlimited session history
- CSV export
- Ad-free experience
- Everything in Free
- Ad-free experience
- Unlimited session history
- Monthly & all-time analytics
- CSV data export
- Priority support
The Focus Lab
Science-backed productivity insights — written for people who actually want to understand their brain.
Your brain has a natural focus rhythm — here's how to use it
Ultradian rhythms govern your cognitive performance throughout the day. Understanding them is the first step to working with your brain instead of against it.
neuroscienceWhy the classic 25-minute Pomodoro might be wrong for you
The Pomodoro Technique's 25-minute interval was never based on science. Here's what neuroscience actually says about optimal focus session length.
flow stateWhat is flow state and how do you get there faster?
Flow isn't mystical — it's a well-documented neurological state. Here's what science knows about triggering it reliably, and why your timer might be the thing stopping you.
Common questions
What is the Pomodoro Technique?
The Pomodoro Technique is a time management method that breaks work into focused sessions (traditionally 25 minutes) separated by short breaks. It was invented by Francesco Cirillo in the 1980s using a tomato-shaped kitchen timer — hence the name.
Why is 25 minutes not the right interval for everyone?
The 25-minute number was an arbitrary choice — not based on neuroscience. Research shows that natural focus cycles (ultradian rhythms) range from 80–120 minutes, and your optimal session length depends on your chronotype, time of day, and accumulated fatigue. Pomodoro tAImer adapts to your actual patterns instead of forcing a fixed number.
How does the AI adapt my pomodoro timer?
The app tracks your focus patterns over time — session completion rates, time of day, your chronotype, and cumulative fatigue — then gradually adjusts your work and break intervals. After each session you give a one-tap rating; the AI uses that signal to converge on what actually works for you.
Does the Pomodoro Technique work for ADHD?
Yes — structured time intervals with defined breaks are widely recommended for ADHD management. Pomodoro tAImer's adaptive intervals are particularly helpful because they shorten or lengthen sessions based on your real performance, rather than forcing a fixed 25-minute block that may not match your attention span.
Is it really free? Do I need an account?
Yes, completely free with no account or sign-up required. Open the app and start your first session in seconds. A premium tier (ad-free, unlimited history, full analytics) is coming soon.
Can I install it as an app on my phone or desktop?
Yes. Pomodoro tAImer is a Progressive Web App (PWA). In Chrome or Safari, tap "Add to Home Screen" or "Install App" to get a native-like experience on any device — no app store needed.
Stop fighting a timer.
Start working with your brain.
No account. No setup. No credit card. Just open it and let it start learning.
Open Pomodoro tAImer — it's freeWorks in Chrome, Firefox, Safari, Edge · Installable as a PWA