Ancient wisdom, meet modern science.
Your hormones, decoded.
Your day, optimised.
Tulsy is the precision health intelligence platform built for women. It turns your daily signals into an Energy Forecast, a Longevity Reserve score, and guidance that tells you exactly why your energy shifts, and what to do about it.
Tulsy will be free to sign up and use at launch. Join the waitlist to lock in 30% off Premium for life, reserved for founding members.
Built on female biology · Powered by AI · Built for every woman who deserves answers
You're doing everything right.
Your tools aren't.
Most health apps were built on male data, for male physiology, with male defaults. They track what happened yesterday but can't tell you what to expect tomorrow. They have no idea that your energy on day 20 of your cycle is fundamentally different from day 5. And they weren't designed to understand what sustained high performance costs a woman's body over time.
Not just another tracker. A health intelligence platform that understands how your biology actually works, and what it needs to keep working at its best.
The gap no one talks about.
You've done the blood panel. Everything came back normal.
So why do you still feel exhausted by 3pm? Why is your focus sharp one week and completely unreliable the next? Why does your gut behave differently for no apparent reason? Why did your sleep fall apart in your mid-forties when nothing else changed?
Normal doesn't mean optimal. And a single snapshot of your blood in a lab tells your GP almost nothing about how your body is actually performing across time.
What women are actually dealing with.
You don't need a diagnosis to know something is off. Millions of women are navigating this gap every day, often alone, often dismissed.
Brain fog that arrives without warning and disappears just as mysteriously. Energy crashes that hit the same time each month but nobody connects them to your cycle. Gut symptoms that flare unpredictably despite a clean diet. Sleep that becomes unreliable in perimenopause, not because anything is wrong, but because nobody told you this was coming or what drives it. Moods that shift in ways that feel chemical, not emotional, because they are. Joints that ache. Concentration that used to be your superpower.
These are not separate problems. They are signals from the same system, your hormonal system, telling you something about where you are in your cycle, your life stage, and your daily load. But without a way to see the pattern, each symptom looks random. Each one gets managed in isolation. And you keep searching for the supplement, the diet, the hack that will finally fix it.
Why self-research isn't working.
You're not passive about your health. You've read the studies. You've listened to the podcasts. You've tried the magnesium, the ashwagandha, the seed cycling, the cold exposure. Some of it helped. Some of it didn't. And you're not entirely sure which is which, or why.
You're experimenting on yourself using protocols designed for someone else's body, someone else's cycle, someone else's stress load. Generic advice applied to a specific biology will always be a guess.
The research on female physiology is decades behind. Most clinical studies were conducted on men. Most wearables were calibrated on men. Most wellness apps were built on male defaults and retrofitted with a cycle tracker. The result is a health industry that understands the average male body reasonably well, and the female body, particularly across perimenopause and menopause, almost not at all.
What your GP can and can't do.
Your GP is not the problem. The system is. A twelve-minute appointment, a blood panel ordered once a year, a reference range built on population averages. These are tools for identifying disease. They were never designed for optimisation, prevention, or the nuanced hormonal picture that explains why you felt extraordinary last Tuesday and completely depleted this one.
Your doctor sees a snapshot. You live in the trend.
And until now, you had no way to see it either.
The case for knowing your own patterns.
Every body is different. Every woman's hormonal fingerprint is her own. The way your energy responds to poor sleep is not the same as the woman next to you. The phase of your cycle that wipes you out is not universal. The gut-stress connection in your body has its own signature.
Longitudinal self-tracking, done consistently over weeks and months, is how you build a map of that fingerprint. Not to replace your doctor, but to walk into every appointment knowing more about your own trends than a blood panel can show. To stop being surprised by your own body. To make decisions about work, training, nutrition, and recovery from a position of actual knowledge rather than hope.
This is what Tulsy is built to give you. Not generic insights. Yours.
Stop guessing. Start knowing.
Join the waitlist and we'll send you a personal invitation with founding member pricing the moment Tulsy is ready.
Tulsy is a wellness tool, not a medical device, and is not intended to replace professional medical advice.
Two minutes a day.
Intelligence that compounds.
Log your daily check-in
Sleep, stress, workload, nutrition, gut health, movement. Tulsy identifies your meals from a photo. Connect Apple Health or Google Fit to auto-fill steps and exercise. Under 2 minutes.
Tulsy reads the patterns
Your AI analyses every signal against your cycle phase, your 14-day personal baseline, and your rolling trends to compute your daily Energy Forecast. It's predicted the night before and refined as your day unfolds.
You perform with foresight
Know tomorrow's energy before it arrives. Understand your Longevity Reserve. Ask Tulsy anything about your own data. Plan your hardest work on your highest days. Stop guessing.
Intelligence built for how you actually work.
Core features are free forever. Premium unlocks deeper intelligence, and every new user gets a 5-day full Premium trial.
Daily Energy Forecast
A 0–100 score from your sleep, stress, workload, nutrition, gut health, and cycle phase. Predicted the night before, updated as you log. Know your high-focus days before they arrive.
Tomorrow Preview
Each evening, a single forward sentence translating your forecast into plain language. Not a number, a clear expectation, so you know what tomorrow holds before it starts.
Longevity Reserve
Your 30-day rolling health score across six domains: sleep, stress, nutrition, movement, recovery, and gut health. One number that tells you whether you're building long-term health capital or drawing it down.
Combined State
Tulsy maps the intersection of your current energy tier and your reserve trend into one of five states, so you always know exactly where you stand. Peak State. Sustainable. Borrowing From Reserve. At Risk. Recovery Mode. One status that tells you exactly where you are right now.
Plan Your Day
Band-appropriate daily recommendations across Foundation, Enhancement, and Deep-dive, each with a "Why this matters" line tied to your personal patterns. Not generic advice. Your plan, for today.
Pattern Intelligence
Tulsy detects the correlations unique to you: how your workload maps to your stress, how your sleep predicts tomorrow's energy, what's actually driving your reserve up or down over time.
Biomarkers
Enter your lab results and Tulsy tracks 36 markers across hormones, thyroid, metabolic health, inflammation, nutrients, minerals, and kidney and liver function. Trend arrows, AI summaries, and stale-lab reminders.
Ask Tulsy
Natural language Q&A over your own last 30 days of data. Ask "Why am I so flat this week?" and get a specific, data-backed answer, not a generic tip.
PDF Health Report
A downloadable report covering your energy trend, Longevity Reserve, domain breakdown, cycle context, and biomarker snapshot. Take it to your GP. Own your data.
Free forever. Premium when you want more.
Founding price, locked for life.
Anyone can sign up for Tulsy at launch and use the core experience free, no credit card required. Every new user also gets 5 days of complete Premium access so you can feel the full intelligence layer before deciding.
Daily Energy Forecast, Tomorrow Preview, daily logging, baseline cycle context, Combined State, and your 5-day full Premium trial. No credit card.
Pattern Intelligence, 30 and 90-day trends, full AI daily recommendations, Biomarkers, Health Exams tracker, PDF Health Report, CSV export, shareable milestone and weekly summary cards.
Your founding price stays locked for as long as you stay subscribed.
All Premium features. Flexible month-to-month. Cancel anytime.
Once public launch opens, founding pricing closes permanently.
No payment. No commitment. Tulsy will be free for everyone at launch, the waitlist simply locks your founding Premium price.
Join women who finally understand their own bodies
Join 400+ women already on the waitlist
"I used to push through exhausted and call it discipline. Tulsy showed me I was working against my own biology. Now I plan my week around my energy, and I'm more productive than I've ever been."
"For years I blamed myself for being inconsistent. Tulsy showed me my energy dips were predictable, tied to my cycle, my sleep, my training load. Seeing the pattern changed everything. I stopped fighting my body and started working with it."
"I've tried every wellness app out there. Most ask too much and tell me nothing. Tulsy is the opposite. Two minutes a day, and within weeks I could finally see why some days I feel sharp and others I feel like a stranger in my own body."
Built with a bigger vision in mind.
Tulsy is the entry point to something much larger: a precision health platform spanning nutrition, genomics, and longevity science, built entirely on female biology.
Our story and visionYour hormones have a pattern.
It's time to understand them.
Tulsy will be free for everyone at launch. Join the waitlist to lock in 30% off Premium for life, reserved for founding members.
No payment, no commitment. Signing up for Tulsy will always be free, the waitlist simply locks your founding Premium price.