Regulate your breath, regulate your life.

Nefes is a breathing exercise app that helps you calm down in moments of panic, fall asleep easily at night, and build your breath-holding capacity. Follow the animated breathing circle, let the gentle vibrations guide you — your breath does the rest.

SOS MODE — ALWAYS FREE
Opens with a single tap during a panic attack or intense anxiety. Using the science-backed "physiological sigh" technique, it slows your nervous system within seconds and calms you step by step. This mode will never be paid.

CALM DOWN
• Box Breathing (4-4-4-4) — the technique special forces use under stress
• 4-7-8 Relaxing Breath — Dr. Weil's classic rhythm
• Extended Exhale (4-8) — quickly reduces anxiety

SLEEP
• Fall Asleep (4-7-8) — practice in bed
• Deep Sleep (5-2-9) — prepare for the night
• Night Calm (4-6-2) — drift back after waking at night

FOCUS & BALANCE
• Coherent Breathing (5.5-5.5) — boosts heart rate variability (HRV)
• Performance Box (5-5-5-5) — before presentations, exams and matches
• Morning Wake-Up (3-2-4) — start the day energized

BREATH-HOLD TRAINING
Safely extend your breath-hold time with the CO₂ and O₂ tables used by freedivers. Measure your personal best with the max test; training tables are built automatically from your record.

TRACK YOUR PROGRESS
Daily streak, total minutes, weekly chart and your personal breath-hold record — all in one place.

PRIVACY
Nefes collects no data. All your statistics stay on your device only. No account, no ads, no tracking.

NEFES+
To unlock all techniques and training tables: monthly subscription, yearly subscription (7-day free trial) or a one-time lifetime purchase. Subscriptions are managed through your Google Play account and renew automatically at the end of each period; you can cancel anytime.

Important: Nefes is not a medical product and does not replace professional healthcare. If you have a heart or blood pressure condition, or are pregnant, consult your doctor first. Never practice breath-holding exercises in water.