Everything You Need to See the Full Picture of Your Fitness
DelayedOnset™ is a timeline-first fitness tracking app that brings workouts, nutrition, recovery, sleep, supplements, cardio activities, and more into one unified timeline. See how your activities connect and get AI-powered insights and chat guidance to optimize performance.
Most fitness apps split your data into separate tabs. DelayedOnset puts everything in chronological order on a single timeline—so you can see what's actually driving progress.
DelayedOnset is built for people who want to understand how training, nutrition, recovery, and sleep actually work together—whether you're an athlete, a data-driven lifter, or someone focused on long-term performance and recovery.
Everything in One Place
DelayedOnset includes workout tracking, nutrition logging, recovery monitoring, sleep tracking, supplement tracking, cardio activities, menstrual cycle tracking (opt-in), AI weekly insights, and an AI chat assistant—all unified in one timeline. No switching between apps, no losing context, no missing connections.
Why Timeline-First Matters
Unlike apps that split your data into tabs, DelayedOnset shows everything chronologically. See how your Monday workout relates to Sunday's sleep, Tuesday's nutrition, and Wednesday's recovery. This context helps you understand what's actually driving progress.
When you can see the full picture—workouts, nutrition, recovery, sleep, supplements, cardio, and more—all in one place, patterns become obvious. You might notice that heavy training days correlate with better sleep, or that certain nutrition patterns support better recovery. These insights are impossible to see when your data is scattered across multiple tabs or apps.
Core Features
Explore each feature and how it fits into your unified timeline.
Unified Timeline
See all your fitness data in chronological order. Workouts, nutrition, recovery, sleep, supplements, cardio, and menstrual cycles appear together—making patterns and cause-and-effect relationships easier to spot.
Learn moreWorkout Tracking
Log structured workouts with exercises, sets, reps, weight, and advanced metrics (RIR, tempo, time under tension). Support for blocks, supersets, circuits, and workout templates that connect directly to your results.
Learn moreNutrition Tracking
Track meals, macros, and micronutrients. Log via manual entry, barcode scanning, or AI photo extraction. Build a meal library for quick logging and see how nutrition timing relates to training and recovery.
Learn moreRecovery & Sleep
Monitor recovery sessions (cold therapy, heat therapy, massage, stretching, and more), sleep quality, and how rest impacts performance. Connect recovery data to training load and nutrition to balance intensity with restoration.
Learn moreCardio Tracking
Track running, cycling, swimming, rowing, and other cardio activities. GPS route tracking for outdoor sessions, pace, distance, heart rate monitoring, and support for both live and retrospective logging.
Learn moreAI Insights
Get weekly AI-powered analysis of your timeline data. Identify patterns, relationships, and actionable insights to help you make better decisions about training and recovery.
Learn moreAI Chat Assistant
Chat with an AI fitness coach that understands your complete timeline. Ask questions, get personalized guidance, and understand your data in natural language. Available anytime, not just weekly.
Learn moreSupplement Tracking
Track supplement intake alongside workouts and nutrition. Build a supplement library, log dosages and timing, and see how supplements relate to performance, recovery, and overall health markers on your timeline.
Learn moreMenstrual Cycle Tracking
Opt-in menstrual cycle tracking with predictions, symptom logging, and integration with your fitness timeline. Plan training around your body's natural rhythms and understand how cycles affect performance.
Learn moreHow It All Connects
Every feature in DelayedOnset feeds into your unified timeline. When you log a workout, it appears alongside your nutrition, recovery, and sleep from that day. AI insights analyze these connections to help you understand what's working and what isn't.
This timeline-first approach means you don't have to switch between tabs or remember what you did last week. Everything is in one place, in chronological order, so you can spot patterns and make better decisions.
Ready to See the Full Picture?
You've seen how the pieces fit together. Now start your timeline.
DelayedOnset is a subscription-based platform. You can explore how it works and decide when you're ready to subscribe.