Full-Value Free Sampling (Reverse Free Trial)
Make your free product a live, rationed taste of everything paid can do — not a walled-off basic tier.
- Difficulty
- Moderate
- Time to result
- ~weeks to results
- Steps
- 3
- Confidence
- 93%
A freemium monetization framework: rather than confining free users to your cheapest/basic features, intersperse a limited, refreshing sample of premium features into the free experience so users viscerally perceive the product's full power. Functions as a 'reverse free trial' delivered in real time.
Origin
Discovered at Grammarly by the subscriber-conversion team (PM Kyla). Free users mostly saw only spelling/grammar fixes, so both brand and lived experience read as 'just a grammar checker.' The team flipped it by sampling paid suggestions across free users' writing.
Core principles
- 01If your free product only reflects your cheapest features, users will underrate your whole product and your brand.
- 02Free should be a reflection of everything the product can offer, capped by cost and rationing rather than hidden entirely.
- 03Instrument the funnel first — you can't optimize free-to-paid without tracking suggestion types and paywall views.
- 04Counterintuitively, giving a taste of paid features away increases rather than cannibalizes upgrades.
How to run it
- 1
Instrument suggestion and paywall events
Track which suggestion types users see and how often they hit paywalls — Grammarly had to add this instrumentation before anything else.
Watch out Without instrumentation you'll run experiments and get wonky, misleading results.
- 2
Intersperse premium features into the free flow
Sample a number of paid suggestions (tone, clarity, full-sentence rewrites) and mix them into free users' experience alongside the free ones.
- 3
Cap and refresh the taste
Limit how many premium actions a free user can accept, then present the paywall; refresh the allowance on a cadence (e.g. daily) like a real-time capped trial.
Pro tip It's a reverse free trial delivered while users work, not a time-based one — adapt existing industry patterns to your specific use case.
In the wild
Free users historically saw only correctness fixes. The team interspersed paid suggestions (tone, clarity, rewrites) across free users' writing, letting them accept a few before hitting the paywall.
→ Upgrade rates nearly doubled; Lenny cites this as what converted him to a paid subscriber.
Common mistakes
Assuming giving away paid features kills conversion
The intuitive fear that a free taste removes the reason to subscribe proved false — perceived product power rose and so did upgrades.
Letting the free tier define your brand downward
When only basic features are visible for free, the whole market perceives you as a basic tool.
Is it for you?
Best for
Freemium consumer (or PLG) products with a wide free base and a premium tier of higher-value features.
Not ideal for
Products where premium features carry heavy per-use cost, or pure B2B lock-in cases better served by classic reverse trials.
From the transcript
“what if we actually sampled a number of different paid suggestions and interspersed them to free users right across their writing”
“our upgrade rates like nearly doubled just through this change”
“It's basically like a reverse free trial but in real time like while you're writing as opposed to a time based one”
From the episode
How to find hidden growth opportunities in your product
Albert Cheng (Duolingo, Grammarly, Chess.com)