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Sizing a free trial to the time retained customers need

The Pricing work group on trial length, when the clock starts, reverse trials and sales-assisted evaluations.

Updated October 13, 2026

Measure how long retained customers take to reach the paid value, treat 14 days as a starting test for simple self-serve products, and compare lengths on revenue and retention at the same cohort age.

  • Time it to the paid value. Ben Williams would count the days retained accounts take to reach a team-level milestone, including setup and inviting colleagues. Snyk's activation metric used a 30-day window, which he calls a measurement choice that doesn't prescribe a 30-day trial.
  • Start at 14 days and test 30. Elena Verna would start a simple self-serve product at 14 days as a hypothesis. Kyle Poyar found trials often convert at 2 to 3 times the freemium rate. He would compare 14 and 30 days on revenue per signup at a fixed cohort age, because conversion on the expiry date favors the shorter trial.
  • Choose when the clock starts. Elena would start access at signup if the paid feature helps during onboarding, or let users opt in once they have a workflow. For a collaborative product, Lauryn Motamedi would start premium access when the creator invites the first teammate and test 14 days from there.
  • Plan for teams and slow calendars. Japna Sethi would track self-serve trials apart from sales-assisted evaluations and let sales extend one that is progressing. Ben suggests a usage limit or a reverse trial when a fixed clock could run out before a colleague reviews the work, but says a reverse trial fits poorly without a useful free plan.

Group chat with Kyle, Elena, Japna, Ben, Lauryn — the Pricing work group

Question:

How long should a free trial be?

Ben Williams
Ben WilliamsRuns The Product-Led Geek. Former VP of Products at Snyk
I’d set the trial clock around the time a team needs to experience the paid value, then check whether that period is long enough for the users who eventually retain. For a developer tool, first value might be finding an issue; at Snyk, the core value we tracked was teams fixing security issues, and our activation metric used a 30-day window because several people could be involved. That 30-day window is a measurement choice, not an automatic prescription for a 30-day trial.june+1
I’d look at retained accounts: how many days pass before they reach the relevant team-level milestone, and how much of that time goes on setup, inviting colleagues, and actually using the paid feature? Choose a duration that gives a meaningful share of those accounts a fair chance, then compare activation, paid conversion, and retention by cohort. If the team needs longer to build a habit, a reverse trial lets people start with premium access and fall back to a free plan at expiry. They can keep using the product while you learn whether the premium feature earned its place.plg
Kyle Poyar
Kyle PoyarFounder of Growth Unhinged. Former Operating Partner at OpenView
Trial length also changes your cash cycle. In my analysis of free trials versus freemium, trials often produced 2 to 3 times the free-to-paid conversion rate and moved purchase decisions sooner. I used a possible 14-day time-to-purchase for a trial versus 60 or 90 days for freemium to illustrate why that matters when paid acquisition needs quick payback. Those are examples of the trade-off, rather than a universal duration target.Substack
I’d compare 14 and 30 days on revenue per signup at a fixed cohort age, along with activation and eventual retention. Looking only at conversion on the trial’s expiration date rewards the shorter option for making the decision happen earlier. If the longer trial brings in better customers after setup and team invitations, that extra time earns its keep.
Japna Sethi
Japna SethiDirector of Product at Atlassian. Former Head of Product-led Growth at Productboard
Trial duration also has to account for who is evaluating. At Productboard, I described a small team discovering value through a trial and a leader assessing an organization-wide deployment through a sales conversation or POC. We used trial behavior around specific features to qualify and route prospective buyers to sales.YouTube
So I’d separate the self-serve trial from the assisted evaluation in the experiment. Give an individual enough time to complete the core workflow, then check activation and paid conversion. For a larger team, record the time spent on setup, inviting colleagues, and procurement separately, and let sales extend an evaluation when that work is progressing. Otherwise a single trial clock can expire just as a promising account is assembling the people needed to decide.
Ben Williams
Ben WilliamsRuns The Product-Led Geek. Former VP of Products at Snyk
Kyle’s cash-cycle point makes the choice of trial mechanism matter too. For dev tools with uneven usage, a usage limit can let someone get through a full workflow even if their team’s calendar is slow; a fixed 14-day clock can expire before a colleague has reviewed the result. A reverse trial gives another option if the free plan remains useful after premium access expires. In my reverse-trial guide, I also suggest offering another premium trial when later behaviour suggests the account is ready to buy.plg
I’d qualify my earlier suggestion: a reverse trial fits poorly when there is no useful free plan to fall back to, or when setting up premium features takes substantial effort. In those cases, give people a fair route through setup and the paid workflow, then compare the revenue and retention of signup cohorts at the same age.plg
Question:
Elena, Kyle would compare 14 and 30 days at a fixed cohort age, and Japna would evaluate sales-assisted accounts separately. With no trial data yet, how would you pick a starting length for self-serve users, and what public example supports your choice?
Elena Verna
Elena VernaLeads growth at Lovable. Former SVP Growth at SurveyMonkey
For a self-serve product with a simple use case, I’d start with 14 days as an experiment, then check when retained customers first experience the paid feature. The number is a starting hypothesis, not a benchmark. In my public trial framework, I recommend short trials without a credit card for simpler SMB use cases; timed trials work best when customers reach value on a similar schedule.elenaverna
I’d also decide when the 14 days begin. If the paid feature helps during onboarding, start access at signup. If it matters only after a customer has established a workflow, let them opt in when they reach that point. My reverse-trial examples describe the cost of a traditional trial that ends before customers get their chance to evaluate, especially when a credit card is required upfront.elenaverna Compare 14 and 30 days on paid-value completion and retained revenue at the same cohort age, with sales-assisted accounts tracked separately.
Question:
Lauryn, Elena suggests starting a trial when the paid use case appears if it comes after onboarding. For a product where value depends on inviting teammates, how would you choose the start event and trial length? Please ground the answer in public work.
Lauryn Motamedi
Lauryn MotamediFormer VP Growth and Product at Notion and Head of Growth at Airtable
For a collaborative product, I’d start premium access when the creator has a workflow ready to share and invites the first teammate. That gives the team an actual chance to use the paid collaboration features during the clock. I’d still let the creator try the product from signup, and I’d test a signup-triggered version if premium features help build that first workflow. At Airtable, we broke down our week-four multi-user activation measure into team signups, invitations, and actual contribution because each step could explain why a team had yet to reach value.YouTube
I’d use 14 days after the trigger as a starting hypothesis, then look at how long retained teams take to reach their first shared, meaningful use. Compare 14 and 30 days among eligible teams at the same age after the trigger, checking paid conversion alongside continued team use. If the product has a useful free plan, a reverse trial lets teams continue working together after premium access expires.YouTube

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In This Conversation

  • Kyle Poyar
    Kyle Poyar

    Founder of Growth Unhinged. Former Operating Partner at OpenView

  • Elena Verna
    Elena Verna

    Leads growth at Lovable. Former SVP Growth at SurveyMonkey

  • Japna Sethi
    Japna Sethi

    Director of Product at Atlassian. Former Head of Product-led Growth at Productboard

  • Ben Williams
    Ben Williams

    Runs The Product-Led Geek. Former VP of Products at Snyk

  • Lauryn Motamedi
    Lauryn Motamedi

    Former VP Growth and Product at Notion and Head of Growth at Airtable

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