Nadir: Energy & Mood Tracker

Your daily energy and mood, in a 0-100 score. Explainable.

Nadir is a dashboard for your shape: every day, you log your energy, mood, sleep, and stress in 30 seconds. You get a score calculated every morning, and you spot the days when everything flows, and the ones that feel heavier.

And above all, your personal model refines itself from your check-ins to estimate your shape for the days ahead. Like a sleep app that learns from your nights, but for your overall energy.

Not another passive meditation app. Not a vague horoscope. A tool to read your days, understand your cycles, and plan your week.

THE 3 CORE FEATURES

- Energy score 0-100 calculated every morning from a transparent formula. You see exactly why your score goes up or down.
- 30-second check-in: energy, mood, sleep, stress. Your data stays private and feeds your personal model.
- 7-day forecast: visualize your peaks and dips to plan what matters this week.

CONNECT YOUR WATCH (optional)

Apple Watch, Galaxy Watch, Fitbit, Oura, Whoop, Garmin: Nadir reads your sleep and heart rate variability via Apple Health or Health Connect. Your check-in fills itself in every morning. You stay in control: edit values by hand and disable any time. Your data is never sold or shared.

WHAT MAKES US DIFFERENT

- A model that learns from you: the more you check in, the sharper your shape estimate gets. No black box, no magic promise.
- The "Why?" badge: every insight is explained by a precise driver, accurate to the minute. You see what lifts or weighs down your day.
- The engine behind the "why": to explain your ups and downs, Nadir draws on a modern astrological reading of your birth chart and current transits. You explore that "why" at your own pace, or ignore it completely.
- Synastry: compare your cycles with your close ones across 4 axes (Communication, Emotions, Energy, Values).
- Private data by default, hosted in Europe.

HOW IT WORKS

1. Enter your birth date, time, and place (used for personal calibration).
2. Discover your baseline energy profile.
3. Check in daily in 30 seconds.
4. Read your energy score + what's lifting or weighing it down.
5. Look at your 7-day curve and plan what matters.

WHAT'S FREE

- Complete energy profile
- Today's energy score
- 2-day forecast preview
- Basic synastry with your close ones
- Daily notifications

PREMIUM (5.99 EUR/month or 39.99 EUR/year, 7-day trial)

- 14-day forecast
- 90-day history
- Unlimited advanced synastry
- Personalized insights based on your check-ins

WHO IT'S FOR

- You often feel drained at the end of the day without knowing why.
- You want to manage your mental load better and anticipate heavy days.
- You're looking for a simple tracking tool, not an intrusive coach or a long meditation app.
- You're curious to know yourself better through daily energy tracking.

YOUR DATA, YOUR PRIVACY

Your data is encrypted and stored on secure servers in Europe (Supabase, Paris). We don't sell anything, we don't share anything with third parties for advertising purposes. You can delete your account and all your data from settings, at any time.

HEALTH DISCLAIMER

Nadir is a wellbeing and self-exploration tool. The app does not provide medical diagnosis, does not treat, cure or prevent any disease. It does not replace the advice of a healthcare professional. If you experience persistent fatigue or worrying symptoms, please consult a doctor.

Available in French, English, and Spanish.

Nadir is built by AXIS, an independent applications studio based in France.