Beluga: Freedive Apnea Timer

Beluga is a clean, focused breath-hold timer for freedivers and spearfishers, built to run your apnea training without getting in the way. TRAINING MODES - CO2 tables: build tolerance to carbon dioxide with shrinking rest intervals - O2 tables: extend your breath-hold with growing hold times - Static apnea: open-ended holds tracked against your personal best - Lung stretching: full-lung and empty-lung routines to build flexibility and lung compliance - Custom tables: build your own rounds, rest and hold, exactly how you train VOICE GUIDANCE Calm spoken cues walk you through every phase: phase changes, mid-phase checkpoints, and a final countdown, so you can keep your eyes closed and stay relaxed. All speech is generated on your device. BUILT FOR REAL SESSIONS - A background-safe timer keeps accurate time even when your screen is off, backed by local notifications - Log contractions as they happen - Review every session in a calendar history - Track your progress with clean stats: personal best, weekly frequency, completion rate YOURS, AND ONLY YOURS - 100% offline: no account, no login, no network, ever - No ads, no tracking, no analytics, no data collection of any kind - Everything stays on your device - Export and import your records and custom tables whenever you want, and you choose where they go Beluga is completely free. Train safe. Never freedive alone, and never practice breath-holds in or near water without qualified supervision.