Flex: Workout Tracker & Log

Track Lifts · PRs · AI Coach

Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.

The training app built for people who lift, run, and want everything in one place. Flex logs every set, tracks your PRs, builds personalized workout and race plans, and keeps your training, cardio, nutrition, recovery, and Apple Health data connected — so every session has a purpose and nothing gets forgotten. --- GET YOUR PLAN - AI-generated plans for Strength, Hypertrophy, Fat Loss, Athletic, Mobility, and General Fitness - Race goals for 5K, 10K, half marathon, full marathon, or custom distances - Auto-generated running plans with weekly pacing, distance targets, and effort guidance - Classic lifting splits: Push/Pull/Legs, Bro Split, and more - Autopilot progression — weights update automatically as you get stronger - Swap any exercise with one tap - Import workouts from a photo or screenshot LOG EVERY SESSION - Set-by-set lifting tracker with rest timer and duration timer - Superset support — group exercises and flow between them - GPS cardio tracking with pace, distance, route, heart rate, and calories - Start scheduled runs directly from your training calendar - Live Activity on your lock screen and Dynamic Island during workouts and runs - 500+ exercises with instructions and visuals - Custom exercises — add anything that’s missing - Notes on any set or session - Workout calendar to schedule and review lift days, run days, or both TRACK YOUR NUTRITION - Log meals and snacks with macro and calorie breakdowns - Barcode scanner for instant food lookup - TDEE-based calorie and macro goals tailored to your body and goal - Track water intake alongside your nutrition - Recipes and saved foods for meals you repeat - Nutrition quality scores and ingredient flags to help you understand what you’re eating TRACK REAL PROGRESS - Personal records, lift goals, and race goals tracked in one place - Muscle balance radar chart — see which groups you’re neglecting - Strength, volume, cardio, and activity trends over time - Heart rate zones with zone-colored cardio graphs - Cardio Load, Cardio Focus, and Activity Strain scores - Bodyweight tracking and health metrics dashboard - Apple Health imports with Health badges and duplicate prevention TRAIN FROM YOUR WATCH - Start lifts, runs, walks, rides, hikes, and rows from Apple Watch - Log sets from your wrist and sync them back to the iPhone app - Watch settings for units, auto-pause, splits, and audio cues - Swipeable in-workout controls for Finish, Pause, Settings, Lock, and Splits - Heart rate, GPS distance, calories, and HealthKit syncing STAY CONSISTENT - Morning sleep summary notification with sleep duration and score - Workout logged confirmation notifications - Workout streaks and badges to keep you motivated - Milestones that reward consistency - Shareable workout summaries and export graphics TRAIN WITH OTHERS - Share workouts with friends or the community - Discover what others are doing for inspiration --- PLUS: AI COACH Ask anything — form tips, recovery advice, workout swaps, running guidance, or what to do when a movement hurts. Real guidance, right when you need it. Try free for 7 days. --- Privacy Policy: https://tryflexapp.com/privacy Terms of Use: https://tryflexapp.com/terms

  • 5.0
    out of 5
    6 Ratings

Redesigned Navigation & Quick Add — Flex's bottom navigation and Quick Add menu have received a complete visual refresh, making the app easier to move through while keeping your most-used actions close at hand. Quick Workouts — Start an unplanned workout immediately without needing to create or add it to a full training plan first. Quick Workouts are ideal for spontaneous gym sessions, travel workouts, or days when you want more flexibility. AI Food Logging — Logging meals is now faster with AI. Describe what you ate in plain text, take a photo of your meal, or import an existing image, and Flex will estimate the foods, calories, and nutrition information for you. Nutrition & Goals Redesign — The Nutrition tab and Goals screen have been redesigned to better match the rest of Flex, with a cleaner layout and a more consistent visual experience. Good Morning Sleep Summary — Start each morning with a quick recap of your night — hours slept, recovery, and a suggested effort range for the day — pulled straight from Apple Health. Flex now also recognizes and correctly labels every activity that syncs from Apple Health, from an Outdoor Cycle to a Functional Strength session, so imported workouts always show up named right. More Motivational Quotes — Flex now includes a larger collection of motivational quotes, plus dedicated rest-day quotes to keep you encouraged on recovery days as well as training days. Smarter Insights & Notifications — Fixed an issue where Smart Insights could repeatedly show the same recommendation, and refined notifications so you get one clear, relevant morning summary instead of duplicates. Full Plan Sharing — You can now share an entire training plan with a friend instead of only sharing individual workouts. Friends can preview the full plan before adding it to their own account. Gear Tracking — Add your shoes and other fitness gear to Flex and track their mileage, workout usage, and overall wear over time, making it easier to know when something may need to be replaced. New App Icons — Additional app icon options are now available under Settings → Appearance, giving you even more ways to personalize how Flex looks on your Home Screen. Various Bug Fixes & Improvements

The developer, CHRISTOPHER LAWRENCE BAGNELL, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Used to Track You

    The following data may be used to track you across apps and websites owned by other companies:

    • Identifiers
  • Data Linked to You

    The following data may be collected and linked to your identity:

    • Health & Fitness
    • Contact Info
    • Identifiers

Privacy practices may vary, for example, based on the features you use or your age. Learn More

The developer has not yet indicated which accessibility features this app supports. Learn More

Seller
  • CHRISTOPHER LAWRENCE BAGNELL
Size
  • 107.2 MB
Category
  • Health & Fitness
Compatibility
Requires iOS 15.5 or later.
  • iPhone
    Requires iOS 15.5 or later.
  • iPod touch
    Requires iOS 15.5 or later.
  • Mac
    Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
  • Apple Watch
    Requires watchOS 26.4 or later.
Location
  • This app may use your location even when it isn’t open, which can decrease device battery life.
Languages
  • English
Age Rating
9+
In-App Purchases
Yes
  • Flex Pro Monthly $4.99
  • Flex Pro Lifetime $149.99
  • Flex Pro Annual $29.99
Copyright
  • © 2026 Blockchain Bay