Case study — Mobile Application2026

PulseFit

Coaching that adapts to your week

A fitness and habit-tracking app whose training plan rewrites itself around the week you actually had, not the one you planned.

Industry
Health & Fitness
Year
2026
Screens
06
Three PulseFit phone screens shown together: progress, today and the AI coach

Overview

About the project

PulseFit is a concept mobile product built around a simple observation: most training plans are written once and then quietly abandoned the first week real life interferes. It tracks daily activity, guides workouts session by session, and charts progress over time — but the defining feature is a coaching layer that reshapes the upcoming week based on recovery, missed sessions and trend data. The whole product is phone-first; there is no desktop app, because none of it happens at a desk.

The challenge

Fitness apps lose people in the gap between the plan and the week. Miss two sessions and a fixed schedule becomes a running list of failures, so the app turns into a source of guilt rather than momentum. The interface problem is harder than it looks: an active workout screen must be readable at arm's length mid-set, while the same product also has to present longitudinal trend data that only makes sense sitting still.

Our solution

We split the product by posture. Screens used while moving — the active session, the timer, the next-up list — are high-contrast, large-type and stripped to one decision at a time. Screens used at rest carry the density: charts, personal bests, weekly comparisons. The coaching layer sits between them, rewriting the coming week from recovery and adherence signals and always stating what changed and why, so an adapted plan reads as a decision rather than a silent reshuffle.

What we built

  1. 01Daily activity ringsMove, exercise and stand progress against personal daily targets.
  2. 02Guided workout sessionsSet-by-set guidance with timer, load, reps and what's coming next.
  3. 03Live heart-rate trackingReal-time BPM with a session trace from a paired wearable.
  4. 04Adaptive training planThe coming week reshapes around recovery, adherence and trend data.
  5. 05Plain-language coachingEvery plan change explains what moved and the signal behind it.
  6. 06Progress analyticsActive minutes, workout counts and averages across week, month and year.
  7. 07Personal bestsLongest session, best week and top streak tracked automatically.
  8. 08Streaks and consistencyA weekly streak view that rewards turning up rather than perfection.
  9. 09Weekly focus areasMobility, cardio and sleep targets surfaced alongside the training plan.

Desktop

Where the product doesits heaviest work.

The full-width interface, screen by screen.

The four core PulseFit screens in a row: today, session, progress and coach
Fig. 01 — Core screens

Mobile

Rebuilt for onehand.

The same information hierarchy, rebuilt for a screen you hold in one hand.

PulseFit today screen with activity rings, daily stats, the day's workout and a weekly streak
01 — Today
PulseFit active workout screen with a session timer, current exercise, heart rate and playback controls
02 — Active session
PulseFit progress screen with an active-minutes chart, summary stats and personal bests
03 — Progress
PulseFit AI coach screen explaining plan changes, weekly focus areas and the adaptive schedule
04 — AI coach

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