Flex: Workout Tracker & Log

Flex: Workout Tracker & Log

Track Lifts · PRs · AI Coach

6 ratings
3 reviews
Free
In-App PurchasesWith Ads

Details

  • Released
  • Updated

Features

Flex: Workout Tracker & Log screenshot #1 for iPhone
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About

This app logs every workout set, tracks personal records, and generates personalized fitness plans. It also offers nutrition tracking, progress insights, and an AI coach for guidance. Stay motivated with streaks and badges, and share your progress with others.

AI-generated workout plans
Set-by-set tracking with rest timer
Superset support
GPS cardio tracking
Nutrition logging with macro breakdowns
Personal record tracking
AI coach for fitness advice
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What's New in Flex

1.6.14

July 31, 2026

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

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Subscription plans

Flex Pro Annual

Unlock Pro features.

$23.991 Year
How to cancel Flex subscription ⁉️
1

In-App Purchases

$74.99

Flex Pro Lifetime

One-time purchase to unlock Pro.

User reviews

Very Easy to Use/Follow

The app is visually appealing and makes everything extremely easy and concise to follow. As a Division One Athlete, having this right at the tip of my fingertips and can constantly track my own gains and progression by myself, it adds a whole new level of accountability and sense of accomplishment. I also really like the AI Coach feature. Something new and clearly using AI to benefit me is a win.
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GREAT APP!

As a retired college athlete, I’ve found it hard to create workouts that help me work towards my personal fitness goals. Now, Flex has helped me create proper workouts and a great training routine. I highly recommend to anyone looking for a way to track their workouts and to see real results.

TC

Great way to track my lifts and. Stay in til if my goals. Best fitness app I’ve tried and my go to recommendation to friends who love fitness.

FAQ

What types of workout plans does Flex offer?

Flex offers AI-generated plans for Strength, Hypertrophy, Fat Loss, Athletic, Mobility, and General Fitness. It also includes classic splits like Push/Pull/Legs and Bro Split.

Can Flex track my nutrition?

Yes, Flex allows you to log meals and snacks with macro and calorie breakdowns. It also features a barcode scanner for quick food lookup and TDEE-based calorie and macro goals.

Does Flex have an AI coach?

Yes, Flex includes an AI Coach that can answer questions about form tips, recovery advice, and what to do when experiencing pain during movements, providing real-time guidance.

How does Flex help track progress?

Flex automatically tracks personal records and lift goals, displays a muscle balance radar chart, and shows strength and volume trends over time. It also offers insights into training patterns and a health metrics dashboard.

What are the subscription options for Flex Pro?

Flex Pro offers a Monthly plan for $2.99 with a 7-day free trial, and an Annual plan for $23.99. These plans unlock premium features beyond the free tier.

Is Flex available on multiple devices?

Based on the provided data, Flex is supported on iPhone and iPod, suggesting it is primarily an iOS application.

How often is Flex updated?

The latest version of Flex was released on June 16, 2026, indicating recent development activity and likely regular updates to improve features and performance.

What is the age rating for Flex?

Flex has an age rating of 4+, making it suitable for a wide range of users, including younger individuals interested in fitness.