You are designing a free trial
Put the trial timeline on the paywall itself — start date, reminder date, charge date and the real price — and say "cancel anytime" where the thumb hovers. Blinkist rebuilt their paywall around exactly this and reported 23% more trial starts and 55% fewer complaints.
Company-reported numbers — no sample size or significance published, so the exact lift stays unverified. The direction matches everything else we hold.
Across 115,000 apps, most 3-day-trial cancellations happen the day the trial starts — people defusing the charge before it can happen.
Yellow dot: vendor telemetry (RevenueCat), huge sample, not peer-reviewed.
55% of all 3-day-trial cancellations happen on day 0. Consumer research triangulates the anxiety: people guess $86/mo in subscriptions, actually spend $219. Blinkist self-reported +23% trial starts, -55% complaints, push opt-in 6% to 74%; no sample size or significance published, so the lift stays CONTESTED.