Case Study: Lingokids increased activation 58% and grew customers 10x with GrowthBook
Key results
The challenge
Lingokids, a children's learning app, wanted its monetization team to move faster and test more ideas in parallel, without overlapping experiments invalidating results or a bad change rolling out to all traffic.
The solution
Lingokids used GrowthBook, including namespaces to bucket users into isolated traffic slices, so multiple experiments could run simultaneously without interference and iterations could launch without code changes or app releases.
“GrowthBook was a game-changer for our speed. We can launch new test iterations without code changes or app releases, and that has dramatically increased our experimentation velocity.”
AMAlejandro MartiEngineering Manager, Lingokids
The results, in context
Lingokids reported a 58% increase in activation rate and 10x customer growth, with more than 5M customers benefiting from tests. A flagship paywall redesign produced roughly a 7% increase in both conversion and revenue without harming the play experience.