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Overview

The challenge was to design a fitness app that provides real guidance not just tracking. It needed to be accessible and effective for users of all fitness levels. Two key features shaped the experience: AI-powered form correction that serves as a virtual personal trainer, and optional smartwatch connectivity that enhances performance insights while keeping the app fully functional on its own.

Problem

Many people want to improve their fitness, but self-guided workouts often lack guidance, motivation, and real-time feedback. Users aren’t always sure if they perform exercises correctly, and workouts can also become repetitive and boring. most fitness apps offer static programs that don’t adapt to user performance, creating a gap between solo training and personal coaching.

Solution

The app is an intelligent fitness platform that tracks workouts and user progress while providing real-time feedback through an AI coach, simulating a personal trainer by correcting form and posture. Another key feature, BattleMode, allows users to compete with themselves or others, keeping workouts engaging and challenging. Together, these features help users stay motivated, maintain consistency, and achieve their fitness goals.

Personas

Designing for all fitness levels required deep user understanding, leading to personas built from real needs and everyday challenges.

Persona 1

Persona 2

BIO

Yoav I 40 I Herzliya I IT specialist

Yoav is a competitive and experienced fitness enthusiast. He trains consistently at the gym, but also works out at home and outdoors. He enjoys challenging himself, participating in competitions, and gaming. He thrives in competitive environments and values measurable progress.

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Pain Points

Regular workouts can feel monotonous and unengaging.
Difficult to find training partners to compete with or benchmark against.
Uncertain if effort is translating into real performance improvements.

If I can’t measure progress, I lose motivation.

"

Goals

Maintain high motivation during workouts, whether at the gym, home,
or outdoors.
Track and measure performance across all types of training environments.
Feel part of a competitive and supportive community.
Receive actionable feedback to improve skills and performance.

BIO

Kim I 24 I Tel Aviv I Office Employee

Kim is a beginner with a sedentary office job. She is intimidated by the gym and personal training costs. She requires affordable, guided support to build confidence and control over her fitness journey.

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Pain Points

Lacks confidence - unsure if she’s performing exercises correctly.
Feels overwhelmed by gym equipment and planning what to do.
Struggles to stay consistent without accountability or guidance.
Gets discouraged easily when progress isn’t visible.
Personal trainers are too expensive, making support hard to access.
Feels intimidated training alone, especially in crowded gym environments.
Unsure how to start building a routine that fits her lifestyle.

I just want a simple plan that helps me stay consistent and feel confident I’m doing it right.

"

Goals

Build consistent workout habits without relying on a personal trainer.
Feel confident performing exercises correctly and safely.
Improve basic fitness and gradually tone her body.
Follow clear, structured workout plans that remove guesswork.
Track progress visually to stay motivated and accountable.
Make fitness feel simple, achievable, and not overwhelming.

User Flow

I focused on two core flows in the AI fitness app: adding a workout session with the AI trainer, and competing in BattleMode. The charts show the steps and decisions users take in each scenario.

New Session

BattleMode

Engagement Over Time

User retention drops sharply in the first days, with minor fluctuations over time.

38%

27%

22%

13%

users

days

Why Users Leave

Keeping users engaged is challenging, but effective tools can prevent drop-offs.

Wireframes

After defining the user flows, I moved on to creating wireframes. These helped shape the app’s structure, layout, and key interactions. The screens below showcase the progression from early concepts to refined designs.

Hover the mouse over

Ready, Set, Win

Elevate your workout by going head-to-head with a participant in real-time. BattleMode transforms traditional tracking into a gamified experience, using AI to sync reps and performance data

Battle Your Limits

BattleMode is a gamified feature that transforms workouts into interactive competitions, helping users stay engaged, push their limits, and stay consistent.

In the Settings screen, users customize alerts, devices, and feedback preferences. In the Setup screen, they choose a challenge, set a goal, and select an opponent for the battle.