Interstitial Ads is an easy to use ads manager for a full page ad that appears before the actual webpage. Ads that appear in a separate ('pop up') window while a webpage is loading, or are inserted between the contents of the page.

Features:

• Full page ads that gets noticed
• Use image ads or text ads (Flash, HTML, Images, Videos, Audio, Embed Code etc.)
• Timer can be enabled/disabled
• Close/Skip button can be enabled/disabled
• Impression: view counter
• Wait timer
• One time per user.
• Page control allows you to set on all pages/homepage or just on custom pages
• Multilanguage Backend/Frontend support
• Support customize colors
• Support for cache plugins (WP Super Cache and W3 or W3 Total Cache)

http://www.youtube.com/watch?v=A9kV6YYnoII

Plugin's Official Site WPmanage (http://www.wpmanage.com/interstitial-ads/)

1.5

• Added: Show/Hide close button option
• Added: Show/Hide Title option
• Added: Impression count
• Fix: WP 4.3.1 compatibility
• Fix: color settings
• Improved close button design
• Other bug fixes

1.4

Skipped only Pro Version

1.3

Fix Ad Options bug.

1.2

• Fix combo box bugs.

1.1

• Fix few bugs.

1.0

• First version. Stable version.

1. Upload the interstitial-ads folder to the /wp-content/plugins/ directory
2. Activate the Interstitial-Ads plugin through the 'Plugins' menu in WordPress
3. Activate the plugin at the plugin administration page.
4. Create your new Ads Campaign.