FitOn

FitOn offers free, celebrity-led fitness videos and builds a "personalized plan" from a handful of upfront preferences, but gives users almost no way to adjust that plan once it exists. As a regular user, and a busy mom with limited workout windows, I used this as a self-directed case study in progressive personalization.

Once a plan is generated, there's little users can do to refine it further. Favoriting a workout drops it into a separate section that's disconnected from the plan itself, and as new workouts are uploaded, that favorites list becomes harder to navigate. Users can't delete workouts they don't want or reorder the ones they do.

I combined personal usage friction with a pass through App Store reviews, which surfaced the same requests repeatedly: delete workouts you don't like, add more of the ones you do, and preview a clip before committing to a full workout.

A competitive check against Workout Women (4.8★, 419K ratings vs. FitOn's 4.9★, 138K ratings) showed that even a larger competitor hadn't solved deeper plan customization — a real opportunity for FitOn to differentiate.

App Store reviews surfacing the customization gap.

• An "Edit Program" screen with drag-to-reorder and swipe-to-delete for existing plan items
• An expandable bottom sheet to pull workouts in from Recommended, Favorites, and Trending without leaving the editing flow
• Preview clips so users can see a workout before adding it
• A fitness-level filter added alongside existing filters

Wireframes:

Your Program.

Filter Program.

Edit Program.

Expanded bottom bar.

Drag & drop.

High-fidelity final designs:

Your Program, with edit icon added.

Filter Program, with fitness level added.

Edit Program screen with preview clips.

Expanded bottom bar: add from Recommended, Favorites & Trending.

Drag-and-drop reordering, swipe to delete.

I scoped delivery in four phases by build cost and risk, rather than proposing everything at once:

• Phase 1 · Fitness-level filter: near-zero engineering lift, since FitOn already uses this taxonomy elsewhere in the app
• Phase 2 · Edit Program screen: A/B test against the existing plan-creation flow, 2–4 weeks to measure engagement and return visits
• Phase 3 · Preview clips: 1–2 weeks to test once footage exists; reusable across the rest of the app
• Phase 4 · Recommendations: held for last, since FitOn didn't yet track the signals a recommendation engine would need