Guided CO₂/O₂ tables, a contraction-aware timer, and AI training plans tuned to your apnea — all in one calm, focused freediving coach.
From your first 2-minute hold to competition PBs — Spira adapts every session to where you are today.
Structured breath-hold tables that build tolerance and efficiency, with audio cues for every phase.
A smart static timer that logs your first contraction and total hold — tap-free, hands underwater.
Weekly training calibrated to your level and recovery, regenerated as your apnea improves.
Track every session, celebrate new PBs, and keep streaks alive with gentle nudges.
Connect a watch or strap to monitor heart rate and HRV-driven readiness in real time.
Share live sessions with a trusted buddy for safer dry and confined-water training.
Start with a 7-day free trial. Cancel anytime, no questions asked.
Subscriptions are managed on the web — no app-store lock-in. Cancel anytime, no questions asked.
My static PB went from 3:10 to 4:45 in two months. The contraction timer alone is worth it.
The AI plan actually adapts when I’m tired. It feels like having a coach who reads my HRV.
Buddy monitoring gives my partner peace of mind during dry holds. Calm, clean, no clutter.
Free for 7 days. Download Spira and take your first guided breath-hold.
Get it on Google Play