Preview and iterate

Test the real flow early and turn observations into focused changes.

Previewing is part of building. Test after every meaningful change so visual polish never hides a broken or confusing workflow.

Run a short test pass

1. Start from a clean launch and complete the app’s main task.
2. Try empty states, incorrect input, back navigation, and repeated taps.
3. Check the smallest and largest device sizes you plan to support.
4. Write follow-up prompts from observed behavior, not assumptions.

Give actionable feedback

On the workout detail screen, keep the Start button visible while scrolling.
When a workout has no notes, hide the empty Notes section completely.

Mention the screen, the current behavior, and the intended behavior. Attach a screenshot or reference when the visual result is difficult to describe.