# Mobile and Native

There are two ways to use tiun in a mobile app today: **Mobile WebView** (supported now) and **first-class native SDKs** (on the roadmap).

***

## Mobile WebView (available today)

The tiun SDK runs **inside** a WebView the same way it runs in any browser. The native shell does not call the SDK directly — it loads your web app in a `WKWebView` (iOS) or `WebView` (Android) and lets the JS SDK handle checkout, login, and paywall events.

For entitlement checks that need to flow back to native code, expose a small JS bridge that returns a verification token from `getUserVerificationToken()`.

```javascript
import { tiun } from '@tiun/sdk';

tiun.init({
  snippetId: window.TIUN_SNIPPET_ID,
  language: 'en', // 'en' | 'de' | 'fr'
});

window.getTiunVerification = async () => {
  const token = await tiun.getUserVerificationToken();
  return JSON.stringify({ token });
};
```

The native host then calls `getTiunVerification()` via its JS bridge — `evaluateJavascript` on Android, `WKWebView.evaluateJavaScript` on iOS — and forwards the token to its own backend, which verifies it server-side. See [Verify subscriptions server-side](/guides/handling-subscriptions/verify-subscriptions-server-side.md) for the verification round-trip.

### Injecting the snippet ID from the native host

The native shell should inject `window.TIUN_SNIPPET_ID` before page load (via `WKUserScript` on iOS, or `addJavascriptInterface` / `evaluateJavascript` on Android) so the same JS bundle works across environments without hardcoded IDs.

### Lifecycle

* If the native host swaps the WebView's URL (full reload), the page tears down automatically — no `destroy()` needed.
* If the native host swaps DOM content **without** reload, call `tiun.destroy()` before loading new content so listeners and runtime config are cleaned up.

See [Lifecycle and `destroy()`](/sdk/getting-started/initialization.md#lifecycle-and-destroy) for the full matrix.

***

## Native SDKs (roadmap)

First-class native SDKs — Swift (iOS), Kotlin (Android), React Native, and Flutter — are on the roadmap.

{% hint style="info" %}
Native SDKs are coming soon. For updates, join the [Discord](https://discord.gg/NCggN2ExZ9) or reach out to <support@tiun.app>.
{% endhint %}


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