Technique · Influence
Reverse trial with a keep-what-you-used check-in
Start new users on the full product for a fixed period, then hold a scheduled check-in that shows what they used ("you used 3 of the 5 paid features") and lets them keep it or step down to free without losing their data.
Plain label: full trial, then choose what to keepAlso known as: reverse trial, premium trial, leave-behind trial, keep what you used
How it works
Leaving the full product with people for a while combines a gift, real use and a scheduled moment to decide. After a few days with features they have used, people value them more, and the check-in turns that into a choice based on their own usage rather than a cold upgrade pitch. Announcing the end date up front avoids the backlash of a surprise removal.
In the book. A tray of products left in the home for a few days, then a visit to take orders (Ch.2, pp.20-21). The tactic mixes a gift, a trial and a scheduled ask. INF-T-RC-05 (Influence Ch.2, p.20)
In a product [S]. A reverse trial gives the full product first and ends with a check-in built from the user's own usage. Combine it with an end date announced on day one (in-t-sc-13).
Evidence Evidence grade C. Limited evidence: few or small studies.. The book offers a company-reported practice; endowment and loss-aversion research supports the mechanism, but published product tests are scarce.
Evidence warning
The only book evidence is a company-reported practice; your own trial cohorts are the real prior.
Removing features people have used is also a strong reactance trigger; announce the end date and what changes on day one.
What the research says
A direct-sales company left a tray of products in homes for one to three days at no charge, then returned to take orders; customers reportedly bought about half of what they had been left (company-reported, book era).
Influence Ch.2, pp.20-21
Before you start
- The value event is tracked.
- You can ship changes behind a feature flag.
How to build it
- Web
- Turn on all paid features for 14 days at sign-up, show the end date in the app header, and on day 12 show a check-in that lists the paid features the user actually used, with "Keep Pro" and "Switch to Free" side by side.
- B2B
- Give a new workspace the full plan for the pilot period; at the end, the admin sees usage by feature and a recommended plan that covers it.
- Mobile
- Unlock premium for a week, send one in-app summary before it ends, and step down without deleting anything the user created.
What can go wrong
- A silent charge when the trial ends.
- Deleting or locking work created during the trial.
- A check-in that lists every premium feature instead of the ones used.
Pairs well with
- Pairs with in-t-sc-13: announce the end of the trial up front.
- Pairs with in-t-au-08: when usage fits a cheaper plan, say so.
In practice
Where it shows up
Limits
What we don’t claim
- Left Brain and Right Brain are a metaphor for extrinsic and intrinsic motivation, not a claim about neuroscience.Actionable Gamification Ch.13, pp.342-343
Sources
Influence · Robert Cialdini
Ch.2, p.20
Source IDs: INF-T-RC-05
Book content is paraphrased, never quoted at length. Last verified October 24, 2026.
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