KoltrixConverting No-Card Trials: What to Email and When
No-card trials bring more signups and more tire-kickers. How to email them: qualify early, ask for payment at the right moment, and handle the lapse with care.
On this page(7 sections)
Dropping the credit card requirement from a trial changes who signs up. You get more people, and a wider mix of them: serious buyers, curious developers, competitors, students and people who will never log in again. The email strategy that worked for a card-required trial doesn't fit that crowd.
A no-card trial needs email that does three jobs a card-required trial mostly doesn't: sort the serious from the curious, ask for payment at the moment it makes sense, and keep the door open for people who lapse.
Why no-card trials behave differently
With a card on file, the default outcome is conversion: do nothing and you're charged. Emails in that setup mostly reassure and remind.
Without a card, the default outcome is lapse: do nothing and the trial simply ends. Every paying customer has to take a deliberate step. That has a few consequences for your email:
- The payment ask has to be explicit. Users won't stumble into paying.
- Low-intent signups dilute your metrics. Measuring conversion against all signups makes every email look worse than it is.
- Timing matters more. Ask too early and you interrupt someone still evaluating. Ask too late and they've already moved on.
Job 1: Qualify early, without interrogating
You can't treat every signup the same, but you also shouldn't put a ten-field form in front of the product. Use a mix of signals:
- What they did in the first session. Connected real data? Invited a colleague? Or clicked around and left?
- What address they signed up with. A company domain suggests a work use case; a free webmail address may still be a serious buyer, so don't over-read it.
- One optional question in the welcome email. For example: "What are you hoping to use this for? Reply with a sentence and we'll point you to the right setup." People who reply are telling you they're serious.
Then send different tracks. Engaged users get setup help and the payment conversation later. Users who never return after signup get one or two short re-engagement emails and then silence.
Job 2: Ask for payment at the right moment
The best moment to ask is just after the user gets value, not on an arbitrary day. Good triggers include:
- They've hit a meaningful milestone, such as the first invoice paid or the first report shared.
- They're approaching a trial limit that real use would cross.
- They've used the product on several separate days.
- The trial end date is close and they're active.
The email itself should be plain:
Subject: Keep your workspace running after the trial
Hi Priya,
Your team has sent 22 invoices from your workspace this week. Your trial ends on Friday, 19 June.
The Team plan covers what you're doing now and costs $25 a month. You can add a card here: [Choose a plan]
If you'd like more time to decide, reply and tell us what's left to check.
(The name, numbers and price are illustrative.) Notice what it doesn't do: no countdown, no threat. It connects the price to what they've already done.
Job 3: Handle the lapse well
Most no-card trials end without payment. What happens next shapes whether some of those people come back.
Tell them what changed
Send one short email when the trial ends, stating exactly what happened:
- Whether the account is read-only, paused, or downgraded to a free tier.
- Whether data is kept, for how long, and whether you'll warn them before deleting it.
- How to export.
- How to continue, in one link.
Accuracy matters here. If you say "your data is safe for 30 days," it must be. As a concrete example, Koltrix's trial is seven days with no card; after that, a workspace without a plan becomes read-only, mail still arrives and everything stays readable and exportable, and data is deleted 30 days later only after three warning emails. Whatever your policy is, state it this plainly.
Warn before deletion
If you delete data after a grace period, send warnings before it happens. Two or three messages spread over the grace period, each with the exact deletion date and an export link, are fair and prevent painful support conversations later.
Leave the door open
After the trial ends, one follow-up a few weeks later is reasonable, especially if you've shipped something relevant to what they were trying to do. After that, stop. People who signed up without a card didn't sign up for a newsletter.
A sample schedule
| When | Engaged users | Users who never returned |
|---|---|---|
| Day 0 | Welcome with one setup step and an optional question | Same welcome |
| Day 1 to 2 | Setup help if stuck | One re-engagement email |
| Mid-trial | Payment ask, triggered by a value milestone | Nothing, or one final nudge |
| Near the end | Trial-ending notice with price and date | Nothing |
| Trial ends | What changed, how to export, how to continue | Short version of the same |
| Grace period | Deletion warnings with dates | Deletion warnings with dates |
| A few weeks later | One relevant follow-up | Nothing |
Deletion warnings go to everyone whose data you hold, engaged or not. That's about honesty, not conversion.
Measuring it honestly
Report conversion against a meaningful denominator. Useful cuts:
- Activated trial conversion: paid accounts divided by trials that reached your activation event.
- Time to payment: how many days after activation people pay. This tells you when to send the payment ask.
- Post-lapse reactivation: how many accounts pay after the trial ended, and which email preceded it.
All-signup conversion will look low with a no-card trial, and that's expected. The question is whether activated users convert.
Key takeaways
- No-card trials default to lapse, so the payment ask must be explicit and well timed.
- Qualify signups with behavior and an optional reply-to-answer question, then split the email tracks.
- Ask for payment right after a value milestone, with the price and date stated plainly.
- When the trial ends, state exactly what happened to data, warn before deletion, and follow up once at most.
- Measure conversion against activated trials, not every signup.
Start with Koltrix
Your domain, one inbox, and an API that sends.
A team inbox where AI sorts and drafts (nothing is sent without your click), plus the transactional API and SMTP relay your product sends with. 7 days free, no card.
