simple apnea
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About this app
simple apnea — train your breath-hold, distraction-free.
simple apnea is a clean, minimalist breath-hold trainer for freedivers,
spearfishers, and anyone practicing static apnea. No accounts, no ads, no
clutter — just a high-contrast timer that stays out of your way while you're
under pressure.
TRAINING TABLES BUILT ON REAL FREEDIVING METHODOLOGY
• CO2 Table — constant holds with shrinking rest to build carbon dioxide
(hypercapnia) tolerance
• O2 Table — growing holds with fixed rest to train low-oxygen (hypoxia)
adaptation
• No-Contraction — hold until your first diaphragm contraction, log it, stop
• Wonka Table — hold a controlled distance past the first contraction
• FRC Table — short holds after a passive exhale that mimic depth compression
• Pyramid — ramp up to a peak hold, then ride back down
• Custom — build your own hold/rest rotation and save it as a reusable preset
EVERYTHING YOU NEED TO TRAIN
• Max Hold sessions — 1–3 fully relaxed maximum holds with long guided rest
• Square Breathing — box breathing warm-ups and recovery
• Personal best tracking — quick PB updates and automatic new-PB detection
• Progress graphs — see how often you train and watch your PB climb
• Audio & vibration cues — choose when you're prompted during holds
• Built-in safety info — educational guidance and blackout-safety reminders on
every table. Never train solo in water.
SIMPLE BY DESIGN
• Offline-first — works with no internet, no account, no data collection
• Lightweight and battery-friendly
• Clean, high-contrast interface built for focus
Breathe slow. Dive deep.
Important: static apnea requires proper instruction. Take a certified
freediving course (AIDA, Molchanovs, SSI, PADI) and never practice holds in
water without a trained buddy. Consult a physician before starting breath-hold
training.
simple apnea is a clean, minimalist breath-hold trainer for freedivers,
spearfishers, and anyone practicing static apnea. No accounts, no ads, no
clutter — just a high-contrast timer that stays out of your way while you're
under pressure.
TRAINING TABLES BUILT ON REAL FREEDIVING METHODOLOGY
• CO2 Table — constant holds with shrinking rest to build carbon dioxide
(hypercapnia) tolerance
• O2 Table — growing holds with fixed rest to train low-oxygen (hypoxia)
adaptation
• No-Contraction — hold until your first diaphragm contraction, log it, stop
• Wonka Table — hold a controlled distance past the first contraction
• FRC Table — short holds after a passive exhale that mimic depth compression
• Pyramid — ramp up to a peak hold, then ride back down
• Custom — build your own hold/rest rotation and save it as a reusable preset
EVERYTHING YOU NEED TO TRAIN
• Max Hold sessions — 1–3 fully relaxed maximum holds with long guided rest
• Square Breathing — box breathing warm-ups and recovery
• Personal best tracking — quick PB updates and automatic new-PB detection
• Progress graphs — see how often you train and watch your PB climb
• Audio & vibration cues — choose when you're prompted during holds
• Built-in safety info — educational guidance and blackout-safety reminders on
every table. Never train solo in water.
SIMPLE BY DESIGN
• Offline-first — works with no internet, no account, no data collection
• Lightweight and battery-friendly
• Clean, high-contrast interface built for focus
Breathe slow. Dive deep.
Important: static apnea requires proper instruction. Take a certified
freediving course (AIDA, Molchanovs, SSI, PADI) and never practice holds in
water without a trained buddy. Consult a physician before starting breath-hold
training.
Clean, distraction-free breath-hold and apnea training for freediving.
Updated on
Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
- No data shared with third partiesLearn more about how developers declare sharing
- No data collectedLearn more about how developers declare collection
What’s new
Initial build for closed testing. Included: - All 9 training modes (CO2, O2, No-Contraction, Wonka, FRC, Pyramid, Custom, Max Hold, Square Breathing) - Personal best tracking with progress graphs - Customizable audio cues + haptic pulses - First-launch safety waiver Please check: install, waiver flow, run one CO2 table end-to-end, confirm voice cues + vibration, and that the dashboard PB/frequency charts update.
