# RemoteObjC.forApp

Create or reuse a native client for a running app.

```js
RemoteObjC.forApp(bundleId)
```

## Arguments

| Argument | Type | Meaning |
| --- | --- | --- |
| `bundleId` | string | App identifier; the app must have automation enabled. |

## Returns

ObjC client.

## Example

```js
openApp("com.apple.Preferences");
const app = RemoteObjC.forApp("com.apple.Preferences");
console.log(app.getInfo());
```

## Notes

Start with [Objective-C step by step](/doc/objc). Does not launch the app. Reuse the client during a script. Background/suspended apps may not respond. Use ObjC directly for SpringBoard. This client supports the same direct method syntax, such as app.class("NSBundle").mainBundle().

## Also available as

`ObjC.forApp`.

[All JavaScript APIs](https://mcp.applesauceos.com/doc/api.md) · [Automation playbook](https://mcp.applesauceos.com/doc/ai.md)