Freediving Trainer by Brucemax

How long can you hold your breath? Train it the way freedivers do. Freediving Trainer measures your current best, builds CO2 and O2 tables around it — the progressive drills freedivers use to stretch a hold — and puts them on a calendar so you always know what to train today. This is dry training: no pool, no gear — your phone is enough. To see inside the hold, connect a Bluetooth heart-rate sensor: watch how your pulse behaves and where the contractions start, on one chart. No stopwatch shows you that. From the maker of the original Freediving Apnea Trainer. TRAIN SAFELY Freediving Trainer is a training tool, not a medical device — it does not diagnose, treat, cure or prevent any medical condition. Heart-rate readings come from a connected Bluetooth sensor, not from your phone. Talk to a doctor in addition to using this app — before starting breath-hold training and before making any medical decisions — and never practice apnea in or near water without a trained buddy: blackout gives no warning. WHO IT IS FOR - Freedivers, from a first static to competition training - Spearfishers who want more bottom time - Scuba divers working on calm, efficient breathing - Surfers and anyone who may end up underwater unexpectedly - Underwater rugby, hockey and other pool sports - Anyone curious how long they can hold TRAINING MODES - Apnea tables, all built from your own best time: CO2 table — builds tolerance to the urge to breathe, the burning feeling that stops you long before you run out of oxygen. The hold stays the same each round while the rest gets shorter. O2 table — trains your body to work on less oxygen. The rest stays fixed while each hold gets longer. Custom — build a table round by round in a drag-and-drop editor. - Best Time: one maximum hold — the classic static attempt — with full sensor tracking. - One Breath: multi-round holds with custom prepare, hold and rest phases. Tap once to mark a contraction and it lands on your chart at the exact second. - Pranayama: 4-phase breathing (Sama Vritti, Visama Vritti, 4-7-8) with custom durations and progressive holds. - Relaxation: a guided body scan to settle you before a hold. YOUR PLAN Enter your best hold, pick how many times a week you can train and on which days — the app lays a multi-week CO2/O2 plan on your calendar and reminds you with a push. Every week it asks you to re-measure your max and rebuilds your tables. A first-launch guide covers the essentials for new freedivers. THE LIVE CHART - Heart rate and contractions on one timeline, not separate screens - Phase markers (Prepare / Hold / Rest) - Session metrics, a feeling scale, RPE and notes BLUETOOTH HEART-RATE SENSOR (optional) Everything above works with the phone alone. Pair a standard Bluetooth heart-rate sensor and your pulse is recorded into every hold. HISTORY AND SHARING Full history with monthly progress; replay any session with its chart. Share a session as a Story or Square infographic, a public link with QR code, or a .freedive file for your coach. FREE - Every training mode, no time limits or locked exercises - The live chart while you hold — heart rate and contractions - Session recording, history, local storage - Custom training tables, with cloud sync - Sign in with Apple, Google or email - Ad-supported PREMIUM - No ads, anywhere in the app - Cloud session sync across all your devices - Unlimited custom tables and shared sessions - Unlimited sensor charts in history (free: 24h unlock by watching an ad) - Monthly or yearly subscription Made by a freediver who wanted to see what really happens during a hold. To fly, you only have to go underwater. Make your flight last longer. Terms of Use: https://go.freedivingapp.pro/terms