A free year for a friend raised the share buying yearly plans by 13%
A book-summary app offered people buying a paid plan a free one-year for a friend as an . In an earlier run a few years ago, the offer raised the for yearly plans by 13% compared with the that did not receive it. The difference held at a , making random variation alone a less likely explanation.
The operator is running the offer again to see whether it can repeat the improvement and plans to check the outcome after a few weeks. Frequent experiments are part of how the app is managed, drawing on experience from a former job.
Key points
- The goal is to increase yearly for a book-summary app.
- Each paid customer can receive a free one-year for a friend.
- The earlier test increased the yearly-plan by 13% versus the .
- The earlier difference met a .
- The offer is being tested again, with results expected after a few weeks.