BrainLeft: AI Usage Tracker

How much thinking did you outsource today? Tracks your AI use on ChatGPT, Claude, Gemini and more. Data stays on your device.

Your brain, in an hourglass. 1. BrainLeft counts how often you use AI and shows it as a brain that drains like an hourglass 2. Set a daily limit, watch the meter go from green to red, and get a gentle nudge to think for yourself first WHAT IT TRACKS 1. Prompts you send to popular AI chat assistants such as ChatGPT, Claude and Gemini 2. Your Google searches compared with your AI prompts 3. Time spent on AI, answers copied, and change vs yesterday 4. Your peak AI hour and a 7-day chart YOUR AI FOOTPRINT 1. Estimated water, energy and CO₂ behind your AI use 2. See it for today, this week, this month and all time 3. Every estimate explained, with its source FEATURES 1. Brain hourglass meter in your toolbar that refills every morning 2. Daily limit from 10 to 1000 prompts, or set your own 3. Day streak for staying within your limit 4. Weekly tier showing how your AI use compares with the average AI user 5. Badges for mindful weeks and months 6. "Think first" pause: Off, After my limit, or Always 7. A weekly share card you can download and post PRIVATE BY DESIGN 1. Everything stays on your device 2. BrainLeft never stores your prompts or search terms 3. It never sends data anywhere 4. No ads, no accounts, no tracking