Zutobi · 2022–2025
Growth Experiments
on Onboarding
Three sequential A/B experiments that improved Install-to-Trial conversion — and revealed the hidden tradeoffs between clarity, trust, and retention.
+7%
Best experiment lift
3
Sequential experiments
The product
Zutobi is a driving education app for the US market. Users install the app, go through onboarding, and hit a paywall before accessing the full course content. The core growth challenge was converting free installs into paying trial subscribers.
The challenge
The existing paywall was feature-rich but lacked one thing: clarity about what users were actually signing up for. We ran three sequential experiments, each building on the learnings of the previous one — treating the onboarding and paywall as a system, not isolated screens.
What we tested
Adding "How your free trial works" section
Context
Zutobi's paywall showed product benefits, ratings, and social proof — but never explained how the free trial actually worked. Users had no clarity on when they'd be charged or what they were signing up for.
Hypothesis
Adding a simple explanation of the trial mechanics directly on the paywall would reduce uncertainty and increase the number of users starting a trial.
Baseline
No trial explanation. Only product benefits, reviews, and featured logos shown.
Variant B
Added a "How your free trial works" section below the CTA — showing trial steps, reminder timing, and cancellation instructions.
+7%
Install-to-Trial conversion
iOS US
Launched for
Default
Became new baseline
Insight
Clearly explaining the trial mechanics gave users more confidence. Even a small informational block had a meaningful impact — proving that trust-building elements can drive conversion.
What I took away
01
Trust reduces friction
Even a single informational block explaining how a trial works can meaningfully lift conversion. Users don't need convincing — they need clarity.
02
Clarity has tradeoffs
The minimal paywall improved trial starts but increased post-trial cancellations. Transparency must be paired with strong value delivery during the trial.
03
Personalization raises the bar
A deeper onboarding flow raised user expectations at the paywall. When the product met that bar — conversion lifted. When it didn't — drop-off increased.