Delta: Workout Tracker Gym Log

Your AI coach builds the plan, tracks every set, and pushes your progress week after week. Try Delta free for 3 days — cancel anytime.

Delta turns progressive overload into a system you can actually follow. Log your sets in seconds, beat your last session, and watch your strength climb — workout after workout.

Most lifters stall because they train on feel. Delta remembers every set, shows you exactly what you lifted last time, and an AI personal trainer tells you what to do next — so every session in the gym moves you forward.

SMART WORKOUT LOGGER • Log a set in two taps — previous values pre-filled, rest timer starts itself • Plate calculator, warm-up sets, RPE and set types built in • Automatic personal record detection, celebrated the moment it happens • Works fully offline — everything syncs when you're back online

AI PERSONAL TRAINER — DELTA PREMIUM • Evolve: take a photo, pick your goal physique — AI builds a week-by-week transformation program that adapts as your body changes • AI Coach: training guidance built on your real workout data • AI Routine Creator: describe your goal, get a complete routine • Form Check: record a lift, get AI feedback on your technique • Readiness Check-In: know how hard to push today • Plateau Breaker: targeted fixes when a lift stops moving • Daily insights, weekly check-ins and a monthly progress report

TRACK YOUR PROGRESS • Strength, volume and PR trends for every exercise • Muscle heatmap shows what you trained — and what you skipped • Body measurements, progress photos and side-by-side comparisons • Forge rank system: every completed set earns XP toward your next tier

ROUTINES AND PROGRAMS • Build your own routines or start with ready-made training programs • Weekly planner schedules your training automatically • 1,500+ exercise library with video guides for every movement • Create your own custom exercises

APPLE WATCH • Full watch app: log sets, run rest timers, check the plate calculator • Watch face complications for one-tap access

BUILT FOR iOS • Live Activity on your Lock Screen and in the Dynamic Island during workouts • Home Screen widgets and beautiful share cards • Apple Health integration • Available in 35+ languages

DELTA PREMIUM Delta Premium unlocks the full experience, including the AI coaching suite and advanced analytics. Subscriptions renew monthly or yearly; the yearly plan starts with a 3-day free trial. Billing goes through your Apple ID, renews automatically unless cancelled at least 24 hours before the period ends, and can be managed or cancelled anytime in your App Store settings.

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Your next session is the one that counts. Start it with Delta.