Nilan Peiris on Word of Mouth and Growth at Wise
Speaker: Nilan Peiris Source: Lenny’s Podcast Date: ~2023
Key ideas
- NPS as a viral coefficient lever. Wise tracks how referral rates correlate with NPS bands: each step from detractor (1–6) to passive (7–8) to promoter (9–10) roughly doubles the number of people a customer tells. Moving the NPS score is therefore more compounding than improving conversion rate.
- 10x product as the precondition for recommendation. Do not expect advocacy until the product is an order of magnitude better than the alternative on the dimensions customers care about. For Wise, that meant price (0.35% vs. the market’s 6–7%), speed (instant transfers), and ease of use — goals set at the theoretical optimum, not iterated toward incrementally.
- Conviction-led product management over experiment maximalism. Wise deliberately avoids split-testing everything. Teams build conviction through qualitative research and NPS comments, then make larger bets. AB tests are used to detect breakage (holdout groups), not to validate every idea. “You can’t split-test your way to love.”
- Product marketing within the product. Closing the gap between value delivered and value perceived is a distinct discipline. Adding a comparison graph showing bank fees vs. Wise fees on the transfer-success screen tripled the referral share rate — customers believed they saved money but needed to see the concrete number to act on it.
- Mission as an organic acquisition channel. A rebrand email that stated Wise’s mission (no CTA, no sign-up button) was forwarded by customers and generated more new signups than conventional marketing campaigns.