5 Best AI Fitness Apps and AI Workout Planners in 2026

Evolve (the app formerly called EvolveAI) combines a patented AI system with years of strength research and coaching experience to make a standalone digital personal trainer and nutritionist. It's built by powerlifters, and it shows.

Evolve doesn't just use AI to build better workouts, it also works out your calorie and macro targets from your goals and diet style (keto included) and adjusts them as you go. Barcode scanning makes logging your food quick.

That screenshot is from the EvolveAI days, so the app looks a bit different now.

Consistency is a massive part of any successful fitness plan, and Evolve's readiness check-in before each session adjusts your workout to how you're actually feeling that day, so you're far more likely to keep turning up.

The training algorithm ensures you're doing the right exercises and features how-to videos to help with proper form and technique.

Evolve also offers some unique features like reactive deloads when you're run down, warm-up bar-loading guides, rest timers based on how hard each set was, and an inbuilt stress index. If you compete, it'll even taper your training to your meet date and help you pick your attempts.

With all these features combined into one package, Evolve is the best AI fitness app I've seen for anyone who lifts.

Key Features

• AI-Powered Personalization: Evolve's patented AI system builds training blocks around your goals and adapts them as you progress, drawing on years of strength research and coaching experience.
• Readiness Check-ins: A quick check-in before each session adjusts the workout to how you're feeling, and you can override it if you're feeling strong.
• Smart Training Tools: Reactive deloads, warm-up bar loads, rest timers based on set difficulty, and an inbuilt stress index to keep an eye on fatigue.
• Form Guidance: How-to videos for each exercise, plus the option to add your own custom exercises.
• Nutrition Guidance: Calorie and macro targets worked out from your energy needs, diet profiles (including keto), food search and barcode scanning.

Pricing

Benefits

• Personalized Fitness Plan: Evolve's use of AI allows for a fully personalized fitness plan that caters to your specific goals.
• Guidance and Support: Instructional videos, readiness check-ins and end-of-block advice provide continuous guidance and support.
• Convenience and Flexibility: With readiness check-ins, sets you can add or drop on the fly and reactive deloads, Evolve flexes around your life rather than the other way round.
• Comprehensive Approach: Combines both workout planning and nutritional guidance in one platform.

Drawbacks

• Evolve requires a gym membership or home gym as it uses weights.
• It's built for barbell lifters and powerlifters, so it's overkill if you mainly want cardio or general fitness.
• Paying through the App Store costs more than paying on Evolve's website.

WHOOP is a wearable device that comes with a powerful AI powered app that can tell you everything from how well you slept to your blood oxygen levels.

It also has a built-in Strength Trainer with a library of pre-built workouts, and you can now ask WHOOP's AI to build a session around your goals, equipment, target muscles or limitations. It drops straight into your workout log.

As the WHOOP app learns your routines and strength levels, it will provide you with valuable information on how you're progressing in the gym. Strength Trainer now tracks your personal records for each exercise and counts the muscular load from your lifting in your daily Strain, not just your heart rate.

Not only that, the WHOOP wearable can help advise when it's time to take a day off or get some extra sleep.

WHOOP Coach, the AI chat WHOOP launched in 2023 on OpenAI's GPT-4, answers questions about your own data, like why your recovery tanked or what to change before a big session.

WHOOP uses biometric sensors to measure 5 key metrics and give you a detailed health overview you can use alongside your customized workouts.

Overall, WHOOP is a powerful AI fitness app that leverages real data readings from your body to give you detailed insights into your health and fitness levels. It's a must have for any trainer looking to dial in their fitness goals.

Key Features

• Real Time Machine Learning: The WHOOP app gets smarter as you wear it using AI and machine learning algorithms combined with biometric readings.
• Custom Workouts: Pick from pre-built workouts, build your own, or ask WHOOP's AI to build one for you.
• Fitness Recommendations: The WHOOP app gives customized recommendations for optimal sleep, recovery, strain, and more.
• Biometric Monitoring: Tracks respiratory rate, blood oxygen, resting heart rate, heart rate variability, and skin temperature. The WHOOP MG band on the top plan adds ECG readings and blood pressure insights.
• Strength Trainer: Logs your sets, reps and weights, tracks personal records for each exercise, and counts lifting load in your Strain.

Pricing

Benefits

• Real Time Insights: The main benefit of the WHOOP app is the real time AI-powered health and fitness insights it offers.
• Better Sleep: Optimize your sleep with the WHOOP journal and AI recommendations. It also features a haptic alarm which goes off when you've hit a certain level of recovery.
• Data-Driven Training: Makes training decisions based on actual biometric data from your body.
• Recovery Focus: Unique emphasis on recovery and strain balance for optimal performance.

Drawbacks

• WHOOP's AI builds workouts when you ask for them; it doesn't run a full long-term program for you the way Evolve or Fitbod do.
• Some people find a subscription model strange for a physical product (the band).
• Requires wearing the physical device at all times for optimal tracking.

Fitbod sets the standard for AI-powered fitness apps and has all the features needed to rival even the best human personal trainer.

Fitbod delivers personalized training programs and workout plans by leveraging AI and machine learning to create a profile based on your goals, fitness levels, and available exercise equipment.

As you build your user profile on Fitbod, the app is better able to recommend exercises based on your capability and muscle fatigue from previous workouts.

If you're new to training Fitbod can help you to use the correct form and prevent injury by offering high-quality video exercise instructions.

Fitbod ensures you progress as fast as possible by actively tracking your progress and suggesting the optimal weights and rep ranges, as well as suggesting workouts based on your muscle fatigue levels from previous sessions.

Fitbod says its users have logged more than 120 million workouts, and a newer Workout Insights feature explains why each exercise was picked and adds coaching tips.

Fitbod ticks all the boxes for anyone looking for a high-quality AI-powered fitness app and has earned Fitbod third place as the best AI fitness app.

Key Features

• Personalized Training Programs: Fitbod leverages AI and machine learning to deliver customized training programs and workout plans based on individual goals, fitness levels, and available exercise equipment.
• Progress Tracking: Fitbod actively tracks your progress, suggesting the optimal weights and rep ranges. It also recommends workouts based on your muscle fatigue levels from previous sessions.
• Wearable Compatibility: Fitbod has Apple Watch and Wear OS apps, and syncs with Apple Health, Fitbit, Garmin and Strava for a more complete picture of your health and fitness.
• Extensive Exercise Library: Fitbod features an extensive library of exercises and high-quality video instructions, providing users with a vast range of options and guidance for maintaining the correct form and preventing injury.
• Muscle Fatigue Algorithm: Unique approach to workout planning based on muscle recovery status.

Pricing

Benefits

• Personalized Experience: Fitbod offers a personalized fitness experience by suggesting workouts and exercises based on individual capabilities and previous workout data.
• Injury Prevention: For those new to training, Fitbod provides high-quality video exercise instructions to ensure the correct form and prevent injury.
• Unique Insights: Fitbod gives you unique insights into your muscle fatigue levels and helps maintain motivation.
• Equipment Flexibility: Adapts workouts based on available equipment, whether at home or in a gym.

Drawbacks

• The AI can take a week or two to train before you see the best results.
• Limited nutrition guidance compared to some competitors.
• Some users report occasional syncing issues with wearables.

FitnessAI helps you optimize your fitness routine by leveraging artificial intelligence and machine learning to create personalized workout plans based on your goals, current fitness level, and workout history.

FitnessAI provides guidance on what exercises to do, how much weight to lift, and how many sets and reps to do, allowing you to benefit from structured progressive overload (the thing that builds muscle).

FitnessAI boasts a number of unique features that mark it as one of the best AI fitness apps available since its release in 2019.

Guided videos and muscle visuals show you how to do each exercise correctly, as well as which muscles are being worked, very handy for beginners.

It's not iPhone-only anymore either: FitnessAI launched on Android in late 2024, and it syncs with Apple Watch on the iPhone side.

FitnessAI's machine learning algorithm continuously optimizes your workout plans and generates the most effective exercises, sets, reps, and weights for each individual. The company says its plans are built on more than 100 million training sessions from real lifters. This makes Fitness AI a top contender as one of the best AI fitness apps available.

Key Features

• Personalized Workouts: FitnessAI leverages artificial intelligence and machine learning to create workout plans that are tailor-made to an individual's current fitness level, workout history, and personal goals.
• Interactive GUI: The app's user interface is designed to be simple and user-friendly, making the process of logging workouts an enjoyable and effortless experience.
• Exercise Guides: FitnessAI uses guided videos and muscle visuals to demonstrate correct exercise technique and highlight the muscles being worked, a super beneficial feature for beginners.
• Progressive Overload: Automatically calculates optimal weight, sets and reps for progressive strength gains.
• Workout Optimization: Machine learning algorithm that continuously refines your workout plan based on performance.

Pricing

Benefits

• Structured Progression: FitnessAI helps ensure consistent progress in fitness training through structured progressive overload, which is key to muscle development.
• Personalized Guidance: By tailoring exercises, weight loads, and rep and set numbers to an individual, the app delivers a unique workout plan to meet specific fitness goals and maximize results.
• User Experience: The app's simple, intuitive interface enhances the user experience, making it easy to log workouts, track progress, and stay motivated.
• Visual Learning: Guided videos and muscle visuals help you learn proper form and understand which muscles you're hitting.

Drawbacks

• No AI chat coach; it programs your lifts but won't answer questions about them.
• The App Store lists several different prices for the same plans, so what you're offered can vary.
• Limited nutritional guidance compared to some competitors.

Freeletics is a popular fitness app that says 60 million people have trained with it. It offers personalized workouts, with nutrition coaching as an add-on, to help you hit your fitness goals.

Workouts can be customized based on individual fitness levels, equipment availability, and time constraints, making it a highly versatile AI fitness app.

Freeletics allows the user to work with their very own digital coach ensuring targeted and tailored workouts are created from 700+ exercises available.

Workout Spaces, added in 2025, let you save each place you train along with the gear it has, and the Coach builds sessions to match. Workouts cover no-equipment bodyweight sessions, gym strength training, cardio like sprints, and mobility days.

Freeletics is packed with features, and with a free version to try first, it's one of the easiest AI workout apps to get started with.

Key Features

• Personalization: Freeletics provides personalized workout and nutrition plans, allowing users to tailor their fitness regimen according to their individual needs and constraints.
• AI Coaching: Freeletics is equipped with a digital AI coach that creates targeted workouts from 700+ exercises.
• Training and Nutrition Bundle: Freeletics offers a bundle that adds its separate Nutrition coach app to the Training Coach, so you get help with what you eat as well as how you train.
• Workout Versatility: Includes no-equipment options, gym workouts, cardio activities, and mobility work.
• Community Support: Large user base provides motivation and social elements.

Pricing

Benefits

• Versatility: Thanks to its capability to adjust based on personal fitness levels, equipment availability, and time constraints, Freeletics caters to a broad range of users.
• Precision: The AI-driven coaching system of Freeletics ensures that workouts are not only targeted but also optimized for the individual's unique needs.
• Holistic Approach: With the inclusion of nutrition and mindset coaching in its bundle, Freeletics offers a holistic approach to fitness and wellbeing.
• Flexibility: Perfect for those who train in various environments or travel frequently.

Drawbacks

• Workouts are considered too intense for some users.
• Higher price point compared to some competitors.
• Some users report the interface can be less intuitive than other apps.