StackAsk is an iPhone app that let's you ask questions from an iPhone to any StackExchange site. 

It's main features are:

  - Content editor with formatting buttons
  - Questions are saved, with multiple versions
  - You can enter a question without Internet connection and post it later. 
  - (upload images from the photo library and straight from the camera)
  - Preview the question's body, (like the preview on the desktop site)

![image description](https://i.sstatic.net/4d8sW.png)

![image description](https://i.sstatic.net/b9GeH.png)

![image description](https://i.sstatic.net/C0dIj.png)