Otto is a Pomodoro timer that works as both a Chrome extension and a Windows app. It is built for people who want focus tools close to where they work. Instead of switching screens or opening extra apps, Otto runs right inside the tools you already use. Here is how it works. The Pomodoro method is all about cycles of focused work and short breaks. Otto makes it easy to start a timer while you browse, write, or code. You can set custom work and break lengths. The timer stays visible so you do not lose track. The Chrome extension is lightweight. Once added, it sits on your toolbar. You click it, press start, and keep going with your work. A countdown shows progress, and you get notifications when it is time for a break. This is especially useful if you often lose yourself in tabs and forget to pause. The Windows app has extra flexibility. It can run in the background, so you always have a timer ready. You can set daily goals, track completed sessions, and adjust reminders. This helps build consistency because you can see how many focused cycles you finish in a day. Otto is designed for people who like simplicity but still want features. It avoids clutter yet provides enough control to adapt the method to your schedule. For example, you can use longer work periods for deep research or shorter ones for tasks like email. Why is this useful? Because having the timer close to your workflow reduces resistance. You do not waste energy switching apps. You just click and start working. Over time, this builds a habit of focus and makes your workday more productive. If you spend most of your time on Chrome or Windows, Otto is a practical Pomodoro solution. It blends into your tools, reminds you to rest, and helps you stay balanced between effort and recovery.