# isAvailable

> Checks if InterstitialAd is available (it is available on iPad since iOS 4.3, and on iPhone since iOS 7.0).

## Definition

* **Type:** Property
* **Namespace:** [UnityEngine.iOS](/engine/6000.6/script-reference/unityengine/ios.md)
* **Assembly:** UnityEngine.CoreModule

> **Warning:**
>
> **Removed.** iOS.ADInterstitialAd class is obsolete, Apple iAD service discontinued

```csharp
public static bool isAvailable { get; }
```