Free trial to paid conversion rate: benchmarks and what moves it

In short: The most-cited public benchmark, FirstPageSage's dataset of 86 SaaS companies, puts organic trial-to-paid conversion at 18.2% for opt-in trials (no card up front) and 48.8% for opt-out trials (card required), counting a single paid month as a conversion. A Shopify app trial is opt-out by construction, because the merchant approves the subscription at install and is charged when the trial ends. So the number to manage is not the form at the start of the trial. It is whether the merchant saw the result they installed for before the charge date.

What is a good free trial to paid conversion rate?

The one benchmark I could verify with a stated sample and method is FirstPageSage's SaaS free trial conversion rate benchmarks, last updated September 2025. The dataset is "drawn from 86 SaaS companies, split 71% B2B and 29% B2C," aggregated from the agency's own clients between Q1 2022 and Q3 2025. Here are the organic-traffic figures:

Trial type	Visitor to trial	Trial to paid
Opt-in (no card required)	8.5%	18.2%
Opt-out (card required)	2.5%	48.8%

Two caveats come with it, and the page is honest about the first. "A conversion is defined as even a single paid month," so a 48.8% rate includes merchants who paid once and cancelled. The second is mine: it is an agency's client base, not a random sample of SaaS, and it is not split by trial length or company size.

The table is still useful because of the arithmetic it invites. Multiply the two columns and opt-in produces about 1.5 paying customers per 100 visitors, while opt-out produces about 1.2. The card requirement roughly triples the conversion rate and roughly cuts the trial volume by two thirds, and the two effects nearly cancel. Which one wins for you depends on what a trial costs you to support and how many of those single-month conversions stay.

Why is a Shopify app trial different from a website trial?

The opt-in versus opt-out debate is mostly settled for you if you sell through the Shopify App Store. If your app asks the merchant to pick a paid plan at install, they approve the subscription then, with the trial days attached, and billing starts when the trial ends unless they uninstall first. There is no card form to remove because Shopify already has the card. In FirstPageSage's terms, that trial is opt-out by construction. An app with a free plan is the opt-in case: nothing is approved until the merchant chooses to upgrade.

Shopify's free trial docs add a rule worth knowing: trial days are tracked over a 180-day period "to prevent users from repeatedly reinstalling apps to exploit free trial periods." Their example is a merchant who uses 12 of 15 trial days, uninstalls, and reinstalls 90 days later with three days left. So a reinstall is not a fresh trial, and your onboarding has to work the first time.

The other difference is competition inside the trial. A merchant evaluating affiliate apps often has two installed at once, both on a trial clock, and the one that shows a referred order first is the one that stays. The trial is not a period for the merchant to learn your product. It is a race to a result.

What should the trial prove?

One thing. That the product produced the outcome the merchant installed it for, on their own store, with their own customers. I call that the proof event, and it is usually the same event as time to full value in the guide on time to value.

App type	What the trial has to prove	What it does not have to prove
Affiliate or referral app	An order came in through a referral link	The merchant has explored the payout settings
Review app	A review from a real customer is showing on a product page	The widget matches the brand colours
Creator outreach for TikTok Shop	A creator accepted a sample or posted	The merchant has read every template
Email or SMS app	A campaign sent to real customers produced orders	Every flow has been built
Upsell or bundle app	An order contained the offer	The analytics dashboard was visited

The right-hand column is what most trials are designed around, because those are the things the product can confirm by itself. The left-hand column is what the merchant will actually weigh on the day the charge hits.

Design the trial backwards from the proof event. Every screen, email, and checklist item during the trial either moves the merchant toward that event or it is in the way.

How long should the trial be?

Long enough for the proof event to happen for most merchants, with some margin, and no longer. I do not have a verified benchmark that says 7, 14, or 30 days converts best, and I distrust the ones I have seen because they never say what the trial was supposed to prove.

The method I use instead is to measure time to full value, take the 75th percentile, and round up to the nearest sensible length. If three quarters of activated stores see their first referred order within 11 days, a 14-day trial fits. If the same number is 20 days, a 14-day trial is converting by calendar rather than by result, and you will either extend it or lose merchants who were about to get there.

Trial length also depends on how fast the merchant's own business produces the proof. An upsell app on a store with 50 orders a day can prove itself in an afternoon. An affiliate program on the same store needs affiliates to sign up, share, and have someone buy, which is weeks. Those two apps should not have the same trial length.

Shopify also lets you extend a merchant's trial, and the docs say "Shopify sends an email to the merchant on your behalf confirming the change." Use that for stores that are close but not there yet. A seven-day extension for a store with three affiliates signed up and no order yet is cheaper than losing the store.

What should the merchant see on day 1, day 3, and day 7?

Working to a 14-day trial, these are the three screens I design first, and the emails that go with them.

Day	Goal	What the merchant sees in the app	What the email says
1	First value, and a named target	The app has done something on their store, plus a line that says what the proof event is and where it will appear	Nothing yet, or one message confirming what is live
3	Progress toward the proof, or the one missing step	A pipeline view: signups, clicks, sends, replies, whatever sits between setup and the proof event	The single step that is missing, named, with a link to it. Nothing if they are on track
7	The proof, or an honest status, and the charge date	Either the result, or where they are relative to it, plus when billing starts and on which plan	A summary built from their store's numbers and the charge date, with a way to change plan or extend

Day 1 is covered in the guide on Shopify app onboarding, so I will not repeat it. The point for conversion is the second half of that screen: tell the merchant what the trial is going to prove, in their terms, before they have to work it out.

Day 3 is where most trials go quiet, and it is the day that matters most. A merchant who set up on day 1 and sees nothing on day 3 assumes the product does not work. If the proof event takes time, show the movement between setup and proof. Three affiliates joined. Two shared. No order yet. That is a working program, and it should look like one.

Day 7 is the pre-charge conversation, and I have a strong opinion here: tell the merchant exactly what happened during the trial using their own numbers, and tell them what the charge will be. Hiding the charge date raises the single-month conversion rate and lowers the number that matters, which is the merchant who is still paying in month three. Having read the tickets a surprise charge creates, I would rather lose the single-month conversion than earn it that way.

What moves the number?

In order of how much I have seen it matter:

1. Time to first value in the first session. A merchant who saw nothing on day 1 is very hard to convert on day 14.
2. A visible pipeline between setup and proof, so the waiting period reads as progress.
3. One stall message, triggered by the merchant's state rather than by the calendar. "You have no affiliates yet because the signup page is not linked anywhere" beats "Here are five tips."
4. A person for the stores that are worth it. A high-volume store that stalls on day 4 is worth a message from customer success, not a drip.
5. Not gating the proof event behind a paid tier. If the trial plan cannot track a referred order, the trial cannot prove anything.
6. The plan the merchant lands on at the end. A trial that ends on the wrong tier converts and then churns. The guides on plan picker design and Shopify app pricing plans cover that.

Then measure conversion the way FirstPageSage's caveat suggests: alongside retention. Report trial-to-paid and paid-at-month-three next to each other, by install cohort. The second number is the one the business runs on.

Where to start

1. Write down the proof event for your app in one sentence, from the merchant's side. If you cannot, the trial has nothing to prove.
2. Pull time to full value for the last three months of installs and read the 75th percentile. Compare it with your trial length.
3. Open your app on day 3 of a fresh trial and ask whether the screen shows movement toward the proof event or a zero.
4. Write the day 7 message using a real store's numbers and the real charge date, and send it to yourself.
5. Add paid-at-month-three next to trial-to-paid on the dashboard, split by install week.