Set a trial length on any package and it converts to a paid term on its own. The viewer sees the trial period and the price that follows before they confirm, which is what keeps chargebacks down and complaints rare.
Giving something away for two weeks is easy. What decides whether a trial is a growth mechanism or an expensive habit is entirely what happens at the end of it, and there are only two designs. Either the trial rolls into a paid term automatically, or it stops and asks the viewer to decide again. The second one feels more polite and converts far worse, because you have taken somebody who was happily watching and handed them a moment to reconsider. The first only works if you were honest at the start, which is why the trial length and the price that follows are shown before anybody confirms. Being clear at signup is not a courtesy, it is what makes automatic conversion defensible.
A trial is a property of the package rather than a platform wide setting, so a seven day trial on one tier and thirty days on another can run at the same time.
At the end of the trial the plan becomes a paid term automatically at the agreed price, rather than stopping and inviting a second decision you will lose people at.
The viewer sees the trial period and what they will be charged afterwards at the point of signing up, which is the single biggest factor in whether the charge is later disputed.
This sounds like an implementation detail and it decides what you can do commercially. When a trial is a package in its own right, you can run several at once with different lengths, aimed at different campaigns, and retire one without touching the others. You can offer a longer trial through a partner and a shorter one on your own site, and the two do not interfere. When a trial is instead a checkbox on a paid plan, every one of those becomes a change to the plan itself, which means changing it affects everybody already on it. Because a trial is a package, it also shows up in the same list, carries the same status field, and can be made inactive the same way. How packages are defined is covered under packages and subscriptions.
Taking card details at the start of a free trial converts fewer signups and produces far better subscribers, and it is worth being clear eyed about that trade rather than pretending it does not exist. A trial without a card gets more people through the door and most of them evaporate, because there is nothing to convert. A trial with a card asks more of somebody at the outset and delivers a paying customer at the end without a second conversation. Vodlix supports the mechanics either way, and the reason the default presentation shows the price and the date so prominently is that the version of this which goes wrong is always the one where somebody was surprised. Everything that happens after the first charge is described under the subscriptions system, and who is currently on what under the subscribers manager.
By the time a trial ends, the outcome was decided some days earlier. Somebody who opened the app twice in the first week and finished nothing is not going to be rescued by a reminder on day thirteen. What that means practically is that the useful question is not how many trials converted but what the people who converted did differently in their first few days, and that is a question about viewing rather than billing. Trials, watch behaviour and conversions all sit against the same accounts, so the two halves can be read together through reports and analytics and the sales dashboard rather than being reconciled between two systems.
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