Train your breath hold, improve lung capacity, and prepare for freediving with STAmina Apnea Breath Trainer. STAmina helps beginners and experienced freedivers increase breath-hold time through proven CO₂ and O₂ training tables. Whether you are preparing for apnea competitions, spearfishing, swimming, surfing, or simply improving breathing control, STAmina provides structured and effective training. FEATURES • CO₂ training tables for better tolerance to carbon dioxide • O₂ training tables to improve oxygen efficiency • Custom breath hold exercises and personalized sessions • Freediving and apnea training programs • Breathing exercises for relaxation and focus • Detailed statistics and progress tracking • Flexible interval settings and training customization • Beginner-friendly and advanced modes • Clean, distraction-free training interface WHO IS IT FOR? • Freedivers and apnea enthusiasts • Spearfishers • Swimmers and water sports athletes • Breathwork practitioners • Anyone looking to improve breathing control and lung capacity Regular breath hold training can help improve relaxation, focus, breathing awareness, and performance in underwater activities. Download STAmina today and start building stronger breath control, longer breath holds, and better freediving performance.