# Permission prompt

> Ask for notification permission with one call. A grant registers for the push token.

URL: https://docs.xulo.io/ios/permission-prompt
iOS SDK version: 0.1.4

## Ask

```swift
Xulo.requestPushPermission { granted in
    // true when the person allowed notifications
}
```

The system prompt asks for alerts, sounds and badges. The completion is `true` when the person allows notifications. A grant also registers for the push token, so the install becomes subscribed once Apple returns it.

The call without a completion works too:

```swift
Xulo.requestPushPermission()
```

## When the prompt does not show

iOS shows the prompt once. If the person already allowed notifications, or your app holds provisional permission, `Xulo.start` registers for a token without asking again. If the person refused, the completion returns `false`.

> **Tip:** Choose the moment
>
> You decide when to call it. It can be at launch, as in the [Quickstart](https://docs.xulo.io/quickstart), or later, at a point in your app where a notification makes sense to the person.

## Without push permission

An install that refused push is still an install:

- It still gets [in-app cards](https://docs.xulo.io/concepts/in-app-cards). Cards do not go through Apple's push service.
- It still counts as a monthly active user when it opens the app.
- It is not in the Subscribed audience and does not receive a push.