What it does
FitnessAI acts as an AI-powered personal trainer in your pocket. It begins by taking you through an extensive quiz to understand your goals, experience, and available equipment. Based on this data, it generates a personalized strength training program complete with specific exercises, sets, reps, and weights. During workouts, it provides 3D animations for proper form and allows you to log your progress, adapting over time.
Where it shines
FitnessAI excels in making the user feel that their plan is truly bespoke. The onboarding quiz (00:09 - 01:38) is remarkably detailed, building confidence from the start. A key moment is the plan summary screen (01:52), which presents the tangible results of your input, like BMI and daily calorie goals, right before asking for a subscription. The in-workout experience is also rich with information. Scrolling down from an exercise animation (03:35) reveals pro tips, muscle group breakdowns, and a unique "Champions" leaderboard that benchmarks your performance against similar users (03:57), adding a compelling layer of gamification.
UX highlights
- Interactive Onboarding: Selecting focus areas during the quiz (00:27) instantly highlights the muscles on a 3D model, providing clear, immediate feedback.
- Value-First Paywall: The app shows you a detailed summary of the personalized plan it created before presenting the paywall, making the value proposition clear and compelling.
- Data-Rich Exercise Screens: Each exercise view contains layers of useful info, from step-by-step instructions to muscle activation percentages, catering to both novices and experts.
- Gamified Progress: The "Champions" leaderboard is a smart way to foster motivation by showing users how they stack up against others in their weight class.
- Flexible Workout Editing: Users can easily edit sets and reps (04:02) or add entirely new exercises to their plan (06:01), giving them a sense of control.
- Trust-Building Loader: The "Building your plan" screen (01:41) uses wait time effectively by cycling through social proof like user numbers and press mentions.
Monetization & growth
Monetization is handled through a subscription model, presented after the user has invested time in the detailed onboarding quiz. At 02:02, a paywall appears with three options: monthly, quarterly, and annual, with the annual plan highlighted as the "Best Value." The pricing is also broken down into a weekly cost to make it seem more affordable. The app includes a 3-day free trial, reducing the barrier to entry. Growth mechanics include a post-workout prompt to rate the app (04:25) and an option to invite friends from the profile screen.
Who it’s for
This app is ideal for individuals who are serious about strength training but may not have the budget for a human personal trainer. It appeals to users who appreciate a data-driven, structured approach to fitness. The level of detail and customization is suitable for intermediate lifters, while the clear visual guidance makes it accessible for motivated beginners who have access to gym equipment.
Notes & opportunities
The onboarding quiz is very long, which could be a point of friction leading to user drop-off. While thorough, streamlining it or showing a progress indicator could improve completion rates. The equipment selection screen (01:18) is also quite detailed and might be overwhelming for users who are unsure what their gym has. A simpler "I work out at a standard gym" option could be beneficial.