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Tronin Denisleft a comment
My full support to Claude and Anthropic. The company makes amazing product and it helps me so much.
People are switching from OpenAI to Claude following Sam Altman's announcement today.
Tronin Denisleft a comment
Hey Product Hunt! 👋 I built O2 because I got into freediving and couldn't find a decent training app. Most "breathing apps" are just meditation timers — they don't understand apnea training. Real freedivers use CO₂ and O₂ tables: structured workouts that progressively train your body's tolerance. I learned this from dive instructors but had to use spreadsheets to track my sessions. That felt...
O2 - Breath Hold TrainerTrain your breath holds with science-based apnea tables
O2 brings professional freediver training to your pocket. Unlike generic breathing apps, it uses real CO₂ and O₂ apnea tables - the same methods used by competitive freedivers to safely extend breath holds
Features:
• Adaptive training based on your personal best
• CO₂ tables (fixed holds, decreasing rest)
• O₂ tables (progressive holds, fixed rest)
• Box breathing and relaxation exercises
• Progress, streaks and stats
• HealthKit integration
• Safety-first approach with guided warm-ups
O2 - Breath Hold TrainerTrain your breath holds with science-based apnea tables
Tronin Denisstarted a discussion
Hey PH community!
Denis here — CTO and co-founder of TrueBloom CY Ltd. I build things I actually use. Architecting event-driven systems for regulated industries (betting, legal tech, fintech across LATAM, EU, Africa). Multi-tenant platforms, distributed systems, compliance-heavy architecture. 15+ years shipping products at scale. In my private time I prefer privacy-first apps with zero compromises —...
Tronin Denisleft a comment
Hi folks! Here is O2 - Breath Hold Trainer (https://apps.apple.com/app/o2-breath-hold-trainer/id6757519007) A training app for freedivers and breath-hold enthusiasts. Unlike meditation apps that just count seconds, O2 uses real apnea training methods — CO2 and O2 tables that adapt to your personal best. The app tests your max breath hold, then generates progressive workouts: CO2 tables (fixed...
Pitch your product here, maybe someone is looking exactly for what you offer.
Salim BoudiJoin the discussion
Tronin Denisleft a comment
Hey Product Hunt 👋 I built Rakoon because every gym tracker I tried had the same problems: - Needs internet to log a simple set - Forces account creation for basic features - Locks your own training data behind $10/month subscriptions So I built what I actually wanted: ✓ Works offline — I train in a basement gym with zero signal ✓ No account — just open and lift ✓ Local-first — your data never...
RakoonThe gym tracker that works offline and respects privacy
A workout tracker for lifters who are tired of apps that need internet to log a set, require accounts, or lock data behind subscriptions.
What's different:
• Works 100% offline — your basement gym, zero signal, no problem
• No account required. Ever.
• Your data stays on YOUR device
• Pay once ($19.99), own forever
• Export everything to CSV anytime
• Apple Watch with live heart rate
• Built-in powerlifting metrics: e1RM, DOTS, Wilks, IPF GL
Free version is unlimited. No tricks
RakoonThe gym tracker that works offline and respects privacy
Purrfect Care revolutionizes pet care with its innovative app, crafted alongside licensed vets. It offers a comprehensive toolkit for managing your pet's health and well-being, tailored to their unique needs.
Purrfect CareRevolutionizing pet health with cutting-edge technology