REZET - Nervous System Reset
Physiological Anxiety Relief
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
What feels strongest right now? Is your heart racing? Is your chest tight? Are your thoughts looping?
REZET is a physiological toolkit, not a meditation app. It acts as an emergency brake for an overactive autonomic nervous system.
When you experience acute stress, panic, or overwhelm, your biology is stuck in a sympathetic (fight-or-flight) or dorsal vagal (freeze) response. REZET provides you with the exact, science-backed respiratory protocols needed to mechanically stimulate your vagus nerve and force a physiological state shift back to baseline.
No spiritual fluff. Just clinical mechanics. Select your current somatic state, and follow the visual and haptic pacing.
NEW: MEASURE VITALS
Use the rear camera and flash for a dedicated 1-minute fingertip reading. A live camera preview helps you place your finger correctly, the measurement starts automatically once pulse lock is stable, and REZET processes the full capture window to estimate:
• HRV
• Heart rate
• Breathing rate
Breathing rate is inferred from cyclical heart rate changes during the measurement. Vitals are provided for wellness trends and self-awareness only, not diagnosis or medical monitoring.
NEW: CUSTOM BREATHING PROTOCOLS
Create and save your own breathing protocols with custom inhale, exhale, and optional hold timings. You can choose whether a session ends by total time or by completed rounds, then restart saved custom protocols in one tap from Home.
THE PROTOCOLS:
We map your acute symptoms to precise respiratory ratios designed to counteract them via heart rate variability (HRV) and vagal tone manipulation.
• Tachycardia (Heart Racing): 4-7-8 pacing directly stimulates the vagus nerve, utilizing breath retention to trigger a rapid parasympathetic response and lower heart rate.
• Chest Tension: 4-4-4-4 (Box Breathing) anchors the autonomic nervous system through equal respiratory distribution, preventing hyperventilation and releasing physical constraint.
• Racing Thoughts: Micro-varied interval pacing demands active cognitive tracking, disrupting Default Mode Network (DMN) loops.
• Sensory Overwhelm: Extended exhalations mechanically decrease heart rate via respiratory sinus arrhythmia (RSA), signaling biological safety to the brainstem.
• Dorsal Shutdown (Numbness): 6.0/6.0 coherent pacing gently up-regulates the system without triggering an adrenaline spike.
• Restlessness: 5.5s Resonant Frequency synchronization maximizes HRV, bringing the cardiovascular and respiratory systems into perfect alignment to clear cognitive fog.
SYSTEM FEATURES:
• Zero Friction: No long intro videos, no mandatory sign-ups. Immediate access to physiological regulation in two taps.
• Measure Vitals: A guided 1-minute camera reading for HRV, heart rate, and breathing rate estimates using the rear camera and flash.
• Custom Protocols: Create, save, and restart your own breathing sessions with custom timings and time-based or round-based targets.
• Clinical Insights: Detailed neurological and biological mechanics explaining why each protocol is effective.
• Haptic & Visual Pacing: A high-contrast adaptive interface combined with precise haptic feedback—allowing for screen-free, eyes-closed regulation.
• Adaptive Intensity Checkpoints: If a respiratory ratio exceeds your current CO2 tolerance, the algorithm safely down-scales the timing mid-session.
• Dose-Dependent Sessions: Choose 1, 3, or 5-minute intervals based on your immediate physiological requirement.
Stop trying to think your way out of a biological response. Use your physiology to change your psychology. Download REZET to gain mechanical control of your nervous system.
Disclaimer: REZET provides physiological wellness support and is not intended to be a substitute for professional medical advice, diagnosis, or treatment.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
- Create and save your own custom breathing protocols
- Set inhale, exhale, and optional hold timings
- Choose session targets by time or by rounds
- Start saved custom protocols from Home in one tap
- Stability fixes and session flow polish
The developer, MARTIN TESAR, 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 Linked to You
The following data may be collected and linked to your identity:
- Purchases
- Contact Info
- Identifiers
- Usage Data
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
- MARTIN TESAR
- Size
- 31.8 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
- iPhone
- Languages
- English
- Age Rating
9+
- 9+
- Contains
Advertising
Health or Wellness Topics
- Copyright
- © Martin Tesar
