HÄK: Cold, Breath & Focus
Ancestral biohacking & science
Free · Designed for iPad. Not verified for macOS.
You haven't lost it. Just forgotten. Cold, breath, fasting, stillness — reawaken what your body already knows. Science × ancestral heritage.
Your body already knows what to do. It's just waiting for the signal.
Sleep better. Boost your energy. Manage stress, strengthen immunity, stay focused. No gadgets, no guru: ancestral protocols — cold, breath, fasting, stillness — backed by science, guided step by step. 100% free.
Modern comfort made us forget what the body has always known: how to use cold, breath, deprivation and stillness to repair and grow stronger. HÄK isn't another coaching app — it's a reminder. A biological wake-up call.
HÄK brings together ancestral practices — those of the Samurai, the Stoics, the Vikings — and validates each one with science (PubMed, meta-analyses, clinical trials). No pseudo-science. No magic promises. Just what has worked for millennia.
THE HÄK METHOD — THREE BIOLOGICAL LEVERS
THRESHOLD — the art of controlled stress
Cold, effort, fasting. Your body adapts and becomes antifragile. (Cold shower, Wim Hof breathing, intermittent fasting.)
MATTER — the art of good input
Light, water, dense food. You're literally built from what you take in. (Morning sun, conscious hydration, functional nutrition.)
ANCHOR — the art of regeneration
Breath, sleep, presence. The parasympathetic system repairs and rebuilds. (Heart coherence, evening ritual, meditation.)
WHAT'S INSIDE
• Immersive widgets that guide you step by step — never a protocol left to interpret
• Multi-mode timer: countdown, stopwatch, intervals, EMOM, AMRAP — from Tabata to 16/8 fasting
• 5 guided breathing exercises with animation and synced haptics: Box 4-4-4-4, 4-7-8, Wim Hof, Coherent, Physiological Sigh
• Binaural soundscapes for focus, meditation, sleep, alertness and relaxation (Alpha, Theta, Delta waves — headphones recommended)
• Decibel meter for vocal-release practices
• Learn cards: origin, science, myths and sources for every practice
• Expert Sessions: complete 3-to-5-practice protocols in the right order (Deep Sleep, Deep Work, Vagal Reset, Immune Armor…)
• Free Mode to build your own session
• Persistent timers: your 16/8 fast keeps running even when the app is closed
• A personalized routine based on your goals, with gentle reminders — never spammy
LEARN → PRACTICE → REPEAT
Understand the why. Follow the guided protocol. Anchor the habit. Knowledge becomes the act, the act becomes instinct.
DUAL VALIDATION
Every practice passes two tests: ancestral heritage (they already did it) and scientific evidence (now we know why). Both are mandatory.
100% FREE
Every practice, every widget, every Expert Session — no subscription, no credit card. HÄK is completely free.
Cold awakens. Deprivation builds. Calm repairs.
Rediscover what the body already knows.
Welcome to HÄK.
Our very first release is here. Reawaken your biological intelligence with ancestral protocols backed by science: cold, breath, fasting, sleep, stillness. We just launched — tell us everything at contact@hak-method.com.
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Welcome to HÄK.
Your body already knows what to do — it's just waiting for the signal. We forgot. We didn't lose it.
HÄK reawakens your biological intelligence with ancestral protocols backed by science: cold, breath, fasting, sleep, stillness.
In this release:
• Track your fast live (16/8, water, dry, extended) and see what your metabolism is doing hour by hour
• Keep an eye on your home ferments — kefir, kombucha, brine
• Practice daily, grow your streak and climb the 8 HÄK levels
We just launched. Feedback or ideas? Write to us at contact@hak-method.com — we read everything.
The developer, Benoit Jolly, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Benoit Jolly
- Size
- 19.3 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later. - iPad
Requires iPadOS 26.0 or later. - Mac
Requires macOS 26.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.0 or later.
- iPhone
- Languages
- English
- Age Rating
13+
- 13+
- Infrequent
Medical Treatment information
Sexual Content or Nudity
Contains
Health or Wellness Topics
- Copyright
- © 2026 Flobber