# isCustomHotkey

```ts
function isCustomHotkey(appHotkey, platform?): boolean;
```

Defined in: [app-hotkeys.ts:213](https://github.com/TanStack/hotkeys/blob/main/packages/hotkeys/src/app-hotkeys.ts#L213)

Whether an app hotkey's effective hotkey differs from its default.

## Parameters

### appHotkey

[`AppHotkey`](../interfaces/AppHotkey.md)

### platform?

`Platform` = `...`

## Returns

`boolean`