Hatch: AI Fitness Coach & Pet
YiChing LIN
Hatch is an AI workout coach and pet companion in one iPhone app. Record a set of squats — Hatch sends key video frames to a vision AI for analysis. Snap a photo of your meal — AI estimates calories and macros. Complete a set — your pet earns XP and grows. Not just a logger. A companion. [ Core Features ] • AI Form Coach Film a squat, bench, or deadlift. Hatch automatically extracts 30 key frames and sends them to a vision AI. You get specific feedback like "shift your weight slightly forward, open up the knee angle a bit more, try this on your next set." Not vague encouragement — real coach-style notes. • Full Workout Logging Weight, reps, RPE, rest time, advanced techniques (Drop Set / Pause / Cluster / Iso Hold), supersets — every field intermediate and advanced lifters need. Three-tier structure (Workout > Exercise > Set) makes history easy to scan and progress easy to see. • Food + Calorie Tracking Snap your meal. AI estimates calories, protein, carbs, and fat. Weight, food, and training all live on one page — cut or bulk without guesswork. • Post-Workout Convenience Store Picks After a hard session, AI suggests protein options from Taiwan 7-Eleven / FamilyMart based on what you just trained. The right protein at the right portion — no standing around the store wondering. • A Pet That Grows With You Three creatures (Blaze the lion / Aqua the dragon / Leaf the deer) × 20 levels. Each level has its own art, so you see your pet evolve every single level. Earn XP from sets, food logs, and weight entries. Streak milestones and unlockable equipment keep things fresh. • Built-In Training Plans PPL (Push / Pull / Legs), Upper/Lower Splits, Beginner Full Body. Don't know how to program? Pick one and start. • Social Feed See friends' workouts, weight logs, and food posts. Like and comment to keep each other accountable. Add by friend code. [ Why Hatch ] • Videos Stay On-Device AI analyzes key frames in the cloud, but the video itself never leaves your phone. Discarded after analysis. No training data harvested. • Cloud Backup Only For Signed-In Accounts Apple / Google sign-in syncs pet, training, weight, and food data automatically. Switch phones safely. Anonymous users keep data device-local (delete app = data gone — by design). • Built By A Lifter Hatch is made by one engineer who lifts every day. Features ship because "I want to use this myself," not to hit feature checkboxes. [ Who Hatch Is For ] • Already train consistently and want a complete log • New to lifting and want AI to check your form • Train alone and want a companion • Cutting / bulking and need food tracking too • Tired of juggling three apps for training, food, and weight [ Pro Subscription ] Hatch is free to download. The free tier lets you log workouts, track weight, and grow a basic pet. Hatch Pro unlocks: • Unlimited AI form analysis • Unlimited AI food analysis • Advanced training stats and charts • Full pet evolution path and full equipment set • Post-workout AI convenience store recommendations Plans (prices and intro offers vary by region; final amount shown on the subscription screen at checkout): • Monthly subscription with a discounted first month • Yearly subscription with a 7-day free trial Payment will be charged to your Apple Account at purchase confirmation. Subscription auto-renews unless canceled at least 24 hours before the end of the current period. Manage or cancel anytime in App Store → Account → Subscriptions. • Privacy Policy: https://productive-warbler-4ab.notion.site/Hatch-Privacy-Policy-34af0206403580bd94eded25c758b767 • Terms of Use: in-app [ Contact ] • Feedback / feature requests: in-app feedback form