Originally published on Medium. Reposted here with the original date.
So we were launching our new app knock… we wanted to get growth city by city.
Plan
We wanted to get evangelists who could drive downloads through them.
The campaign
If you are in Indira Nagar and if you send us a knock knock joke from the app we will come and deliver you a donut at your place.
The Result
The result was nothing short of phenomenal…
(Full original: link above.)