# FitnessAI

> Strength training app that uses AI to set the sets, reps and weights for each workout and adjust them over time.

FitnessAI is a strength training app that uses AI to plan workouts. FitnessAI tells the user which exercises to do and how many sets, reps and how much weight to use, then adjusts those numbers as performance changes. Sessions last 5 to 30 minutes and adapt to the equipment available.

**Best for:** People who lift weights and want each session planned for them, including those with limited time or changing equipment.

- Official site: https://www.fitnessai.com
- Listed in: [Health & Wellness](https://trendhub.net/ai-tools/category/health-wellness)
- Last checked: 2026-10-09 (facts taken from fitnessai.com)
- Source page: https://trendhub.net/ai-tools/fitnessai-ai-strength-training-workout-app

## Key facts

- Made by: FitnessAI Inc.

## What is FitnessAI?

FitnessAI is a mobile strength training app that uses an algorithm to plan each workout. Rather than leaving the lifter to choose, the app prescribes the exercises, sets, repetitions and weights, and changes them as logged performance improves or drops, an approach known as progressive overload. The company says the programming draws on more than 100 million sessions recorded by real lifters. Sessions run from 5 to 30 minutes and are rebuilt around whatever equipment is on hand, whether that is a full gym, a home setup or a hotel room, with exercise swaps available on the spot. Guided demonstration videos and muscle visuals show how each movement is performed. The app also syncs with Apple Watch, tracks strength and body composition, includes a 3D BodyScan view and runs structured challenges with rewards.

## Key features

- **Prescribed Workouts**: Sets the exercises, sets, reps and weights for every session so nothing has to be chosen manually.
- **Automatic Progression**: Raises or lowers load and repetitions according to how the previous sessions went.
- **Equipment Matching**: Rebuilds a workout around the equipment available and offers instant exercise substitutions.
- **Form Guidance**: Shows demonstration videos and highlights the muscles involved in each exercise.
- **Apple Watch Sync**: Pulls performance data from the watch so training records stay accurate without manual entry.
- **Progress Tracking**: Charts strength changes and body composition, including a 3D BodyScan visualisation.

## Use cases

- **Starting Weight Training**: Follow a set plan when you do not know which exercises or loads to pick.
- **Short Gym Sessions**: Fit a structured workout into a window as brief as five minutes.
- **Training at Home**: Get sessions that only use the equipment you actually own.
- **Working Out While Travelling**: Keep a programme going with whatever a hotel gym provides.
- **Joining a Challenge**: Take part in a time-boxed challenge that has rewards attached.

## Things to know

- **App-based product**: The website points visitors to download the app by scanning a code; workouts are not run from the website itself.
- **Pricing is not on the home page**: The site shows a discount banner and a free start button, but no plan prices are published on the page reviewed.
- **Training data claim comes from the maker**: The figure of 100 million-plus sessions behind the algorithm is the company's own statement.

## FAQs

### What is FitnessAI?

FitnessAI is a strength training app whose algorithm decides the sets, reps and weights for each workout and updates them as you progress.

### What is FitnessAI used for?

FitnessAI is used to follow a structured weightlifting programme without planning it yourself, and to track strength and body composition over time.

### How long are FitnessAI workouts?

FitnessAI sessions last between 5 and 30 minutes and are fitted to your schedule.

### Does FitnessAI work without a gym?

Yes. FitnessAI adapts its workouts to the equipment available, so it can be used at a gym, at home or while travelling.

### Does FitnessAI work with Apple Watch?

Yes. FitnessAI lists Apple Watch integration for syncing performance data automatically.

### Who makes FitnessAI?

FitnessAI is published by FitnessAI Inc., according to the copyright notice on its website.

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Source: https://trendhub.net/ai-tools/fitnessai-ai-strength-training-workout-app (trendhub)