The bottom line
Opal raised trial sign-ups from downloads from 7% to 17% by showing users how many years of their life they would spend on a phone, and how many they could save. That moment of high motivation made users commit to a free trial and brought in users ready to engage.
Key takeaways
- Projecting lifetime phone use lifted trial sign-ups sharply. It showed users a large personal cost at the moment they decide.
- Conversion from download to trial sign-up rose from 7% to 17%.
- The gain came through several iterations of the approach.
- Showing years that could be saved created a moment of high motivation. Users saw the product as a way to win back real time.
- The savings were framed as several years over a lifetime.
- The approach worked like the commitment effect of gym memberships. Motivated people sign up to lock in their intent.
- The strategy also drew in users who wanted to engage with the product. Motivation at sign-up shaped who started the trial.
The test and its result
Opal tied its paywall and free trial to a projection of lifetime smartphone use, and trial sign-ups more than doubled.
- The new approach projected time spent on smartphones over a lifetime.
- Users were shown the potential to save several years by using the product.
- This created a moment of high motivation before the trial offer.
- The motivation pushed users toward a free trial.
- The effect is similar to the commitment seen with gym memberships.
- The test sits in the paywall and free trial category.
- The result was a higher trial sign-up rate from downloads.
- The rate went from 7% to 17%.
- The users gained were motivated to engage with the product.
- The result came through various iterations, not a single change.

In the growth library
Opal, Paywall & free trial test. Opal projected how many years a user would spend on their phone over a lifetime and showed how many they could save, creating a moment of high motivation right before the free trial offer. Through several iterations, trial sign-ups from downloads rose from 7% to 17%.
Lessons that draw on this:
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