
A language learning app with free and Premium tiers for studying multiple languages.
Busuu limited free users to one language and kept multi-language study for Premium. Among power users who switch between languages, conversions rose 83%. The lesson: gate on behavior that marks dedicated users, and test the lock against that defined segment. The source reports only the power-user result, not the effect on all users.
Power-user conversions rose 83%
From Busuu paywall A/B test
Busuu locked multi-language study behind Premium and lifted power-user conversions 83%. Busuu limited free users to one language and required Premium to study more than one. Conversions among power users who switch between languages rose 83%.
The hypothesis was that free users who switch languages are committed and will pay to keep that access. The result was reported for that power-user segment, so the lock was gated on behavior that signals dedicated use rather than applied to all users. That puts the paywall where intent is highest and makes the upgrade feel like a natural next step for engaged learners, not a barrier for casual ones.

Busuu limited free users to one language and kept multi-language learning for Premium. Conversions among power users who switch between languages rose 83%.
Busuu locked multi-language study behind Premium and lifted power-user conversions 83%. Busuu limited free users to one language and required Premium to study more than one. Conversions among power users who switch between languages rose 83%.
The hypothesis was that free users who switch languages are committed and will pay to keep that access. The result was reported for that power-user segment, so the lock was gated on behavior that signals dedicated use rather than applied to all users. That puts the paywall where intent is highest and makes the upgrade feel like a natural next step for engaged learners, not a barrier for casual ones.

Saw a 34% increase in conversions after locking more content behind the paywall. The case comes from ABtest.design.
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