SubZero Gym

More than workout plans — a complete fitness platform. AI training programs, Apple Health sync, progress analytics, and smart supplement recommendations.

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/