Training Arc vs Stackd

Training Arc is a workout logbook designed to help lifters train harder, think smarter, and track progress more meaningfully — without relying on generic programs. Unlike most gym apps (Stronglifts, Boostcamp, RP Hypertrophy, etc.) it doesn't lock you into someone else’s plan. Instead, Training Arc encourages you to develop real training instinct — adapting based on feedback, not templates. It’s built for lifters who want full control over their workouts — whether you’re running your own programming or figuring it out as you go. Grind lifting like a video game Every workout feeds into your Power Level, a number that reflects how consistently you're pushing your limits. Whether it’s a new rep max or just showing up and hitting volume goals, your Power Level grows when you train with intent. You’ll also unlock Badges for key milestones — from hitting new PRs to logging consistently — helping you stay accountable and motivated without relying on external validation. Instead of just tracking numbers, Training Arc helps you interpret them. The gamified elements aren’t just for show — they’re designed to help you understand where you’re improving, where you're stalling, and what’s worth chasing next. Key Features: • Fast, frictionless logging: Log any exercise in seconds, like using a notes app • Automatic PR tracking: Detects new personal records across any rep range • Intensity scale: Reflect on how hard each session actually felt • Volume & intensity targets: Set goals for each session based on how you're progressing • Custom technique cues: Attach personal reminders to each lift • Built-in rest timer and session notes Privacy Policy: https://trainingarc.app/privacy Terms of Service: https://trainingarc.app/terms Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Training phases change. Work gets busy. Goals shift. Most fitness apps lock you into their programs. Stackd works with whatever plan you built this week — because your AI agent writes it, and Stackd just keeps score. IMPORT AI WORKOUTS IN SECONDS Design your program in any AI agent. Copy the JSON. Paste it into Stackd. Your full workout plan appears instantly — exercises, sets, rep targets, everything. No manual entry. No templates. No friction. TRACK EVERY SESSION Log sets, reps, and weight as you train. Stackd auto-fills your last session's weight so you always have a starting point. Hit your rep targets and the weight recommendation updates automatically — progressive overload built in. SEE YOUR STRENGTH GROW Estimated 1-rep max charts for every exercise. Watch your squat, bench, and deadlift climb week over week. Full session history so you never lose a workout. NUTRITION TRACKING INCLUDED Log meals and hit your macro targets without switching apps. Build daily meal plans, track protein, carbs, and fat. Everything in one place. BUILT FOR LIFTERS WHO PLAN WITH AI Most fitness apps want to sell you their programs. Stackd assumes you already know how to use AI Agents to build a better one. We just give those programs a home. No ads. No upsells inside the app. Cancel anytime.