Peak-End Rule: Use to Your Advantage
Peak-End Rule, Emotional Journey, UX Psychology, Customer Experience, User Memory, Usability Testing
Two users buy movie tickets online. One has a terrible start, then it gets better, dips again, but ends well. The other also starts badly, then improves – and ends well. Which one had a better experience?
Surprisingly, it’s the second user. That’s the Peak‑End Rule at work: we don’t remember entire experiences – only the most intense moment (peak) and the final moment (end).
In this article, I’ll explain how to map your users’ emotional journeys and use the Peak‑End Rule to prioritise design fixes that actually shape their memory of your product.
Peak-End Rule: Use It to Your Advantage in UX
How do users perceive their experience with your product or service? Let’s consider an example where two users purchase movie tickets online. We’ll map out their emotional journey.
User A begins very negatively → gets better → a little worse → ends positively.
User B begins negatively → gets better → ends positively.
Looking at these two journeys, who had a better experience?
The answer is User B. But why?
What Is the Peak‑End Rule?
The Peak‑End Rule states that we do not evaluate experiences as a whole. Instead, we evaluate them based on the peak (the most intense moment, positive or negative) and the end (the final moment).
In the movie ticket example:
User A ended positively, but their negative peak consumed their journey.
User B started negatively but ended with a positive peak.
When you ask a user to recall their experience on your site, they’re largely basing their answer on these moments – not the average of everything that happened.
How Designers Can Use the Peak‑End Rule
Use the Peak‑End Rule as a framework to determine where to focus your UX efforts.
Step‑by‑step approach:
Conduct field studies and user interviews – discover the extremely positive and extremely negative experiences that occur throughout your customer journey.
Identify the peaks – what caused the strongest reactions (good or bad)?
Improve common negative experiences – run usability tests to redesign those components.
End on a high note – ensure the final interaction (e.g., confirmation screen, thank‑you page, delivery notification) leaves users feeling good.
Why This Matters
The Peak‑End Rule helps us target our efforts to improve the aspects of an experience that customers remember most. Not every touchpoint matters equally – focus on the peaks and the end.
Keep in mind: the best way to end your customer journey is on a positive peak.
Download our ‘Emotional Journey Mapping Template’ – a Miro/PDF template to plot user peaks and valleys across your product’s key flows.