SubZero Gym vs STRIVN

SubZero Gym is a complete fitness platform that puts a personal trainer in your pocket. Generate AI-powered workout plans, track every rep, monitor your recovery, and crush your goals — whether you train at a full gym, at home with dumbbells, or anywhere in between. PICK YOUR AI, BUILD YOUR PLAN Choose from 7 AI providers — Claude, GPT, Gemini, Grok, DeepSeek, Groq, or Perplexity — and 15 models. Generate 2 to 12-week progressive programs with periodization: Foundation, Build, Peak, and Deload phases. Plans adapt to your equipment (65+ types), schedule, and goals. Got injured? Changed your schedule? AI regenerates your plan while preserving progress. YETI: YOUR ON-DEVICE AI (Basic and above) Yeti runs locally on your iPhone — no internet required, instant responses. Workout Control (98 Commands): "Skip bench press." "My shoulder hurts." "Go lighter." "Swap to dumbbells." "Only have 30 minutes." "Add a set." Coaching: "How do I do this exercise?" — form tips, muscles, technique. "Should I train today?" — checks readiness. "Am I plateauing?" — analyzes progress. Schedule: "Swap today with tomorrow." "Skip today." "I need rest." AI Generation: Post-workout summaries with coaching tips. Weekly insights with volume trends. Personalized warm-ups based on today's workout. (Pro and above) SMART FEATURES (Pro and above) • Smart weight suggestions from your history • Readiness score from sleep, HRV, and resting heart rate • Plateau detection with intervention strategies • Effort PR detection — same weight at lower RIR = strength gain • Mid-workout fatigue detection with weight adjustment suggestions All local. Your data never leaves your device. TRAIN YOUR WAY • iPhone only — workout logging, rest timer, PR detection, Live Activity • iPhone + Apple Watch — real-time HR, voice announcements, haptic feedback • Log on iPhone while Apple Fitness tracks HR on Watch — data merges automatically • Apple Watch standalone — complete workouts from your wrist TRACK EVERYTHING • 8 PR types: max weight, reps, volume, 1RM, effort PRs, distance, pace, duration • RIR tracking with intensity analysis • Muscle recovery heat map — 13 muscle groups, tap for details • Volume trends, frequency charts, complete workout history BODY COMPOSITION • Weight tracking with smart scale sync and trend charts • 12 body measurements with progress indicators • Encrypted progress photos — AES-256, Face ID required, stays on device NUTRITION & SUPPLEMENTS (Pro and above) • AI supplement stacks with research citations from PubMed • Three tiers: Essential, Beneficial, Optional with daily timing • Sync from MyFitnessPal, Cronometer, or any HealthKit app • Macro tracking with AI-personalized targets 54 ACHIEVEMENTS, 9 CATEGORIES Bronze through Diamond tiers. Workouts, volume, streaks, PRs, cardio, consistency, nutrition. Full-screen unlock celebrations. Shareable achievement cards. APPLE ECOSYSTEM • 8 Home Screen + 5 Lock Screen widgets • Live Activity & Dynamic Island during workouts • 4 Control Center controls • 7 Siri Shortcuts • WorkoutKit sync to Apple Fitness • Focus Filters for notification control • Apple Journal integration • iCloud sync across devices (Pro+ and above) • Family Sharing up to 6 members (Pro+/Elite+) 550+ EXERCISES. 65+ EQUIPMENT TYPES. Full gym, home gym, hotel gym, bodyweight only — SubZero adapts to what you have. PRIVACY FIRST All data stored locally. No ads. No third-party analytics. Progress photos encrypted. AI requests processed but never stored. 6 TIERS • Free: Core tracking, 1 plan/month • Basic ($3.99): Yeti AI, 98 commands • Pro ($7.99): Smart AI, Watch app, widgets • Pro+ ($15.99): iCloud sync, Family Sharing • Elite ($14.99): Unlimited plans, research citations • Elite+ ($29.99): Everything + Family Sharing Train smarter. Track everything. Achieve more. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

STRIVN — AI Strength Coach Most fitness apps record what you did. STRIVN tells you what to do next. Powered by GPT-4o and built on exercise science principles, STRIVN is the only strength training app that adapts your program week to week — based on your actual performance, recovery data, and training history. No generic plans. No passive logging. A coach that learns. —— AI-GENERATED PROGRAMS Tell STRIVN your goal, experience level, and how many days you can train. It builds a complete, periodised program — compound movements first, volume calibrated to your level, rep ranges matched to your goal. Push/Pull/Legs, Upper/Lower, Full Body, or custom. ADAPTIVE DAILY COACHING Every morning, your AI coach reviews your Apple Watch recovery data — HRV, sleep, resting heart rate — and adjusts today's session accordingly. Peak recovery day? Push harder. Low HRV? Volume is pulled back automatically. The program responds to your body, not a calendar. AUTO-PROGRESSION Hit the top of your rep range on every set? STRIVN increments your weights automatically for next session. Progressive overload without the spreadsheet. WEEKLY INTELLIGENCE REPORT Every week, GPT-4o analyses your training, nutrition, and recovery data together — identifying strength trends, volume landmark status, plateau warnings, and correlations between your diet and performance. The kind of insight a £100/hour coach would give you. VOLUME LANDMARK TRACKING Built on MEV/MAV/MRV theory. See exactly where each muscle group sits — below minimum effective volume, in the optimal adaptive range, or approaching your maximum recoverable volume. Train smarter, not just harder. NUTRITION LOGGING Log meals manually, scan barcodes, or photograph your food — GPT-4o Vision identifies it instantly. Track calories, protein, carbs, and fat. Your nutrition data feeds directly into the AI coaching layer. APPLE WATCH Log sets from your wrist. Real-time heart rate, rest timer, and workout controls — all without touching your phone. RECOVERY INTELLIGENCE HRV, sleep quality, resting heart rate, and steps synced automatically from Apple Health. Your recovery score is recalculated daily and informs every AI recommendation. —— FREE — Unlimited workout logging — AI program generation — Progress tracking and personal records — Apple Watch support — Nutrition logging PRO — £9.99/month or £29.99/year — Daily AI session adaptation — Weekly intelligence report — Volume landmark analysis — Correlation intelligence — Plateau detection and deload recommendations —— Subscriptions are optional. Workout logging, program generation, and progress tracking are free, with no time limit. Subscription automatically renews unless cancelled at least 24 hours before the end of the current period. Manage or cancel in your Apple ID account settings. Privacy Policy: https://getstrivn.com/privacy Terms of Use: https://getstrivn.com/terms