How to Activate License Key

You need to activate the license key in the app for which you have purchased the license key. 

You can download the apps from the website.

• 4K Video Downloader+
  
  
• 4K Video Downloader
  Scroll down the page to find the old 4K Video Downloader
  
  
• 4K YouTube to MP3
  
  
• 4K Stogram
  
  
• 4K Tokkit
  
  
• 4K Image Compressor

Place your key into a special activation field and click "Activate" to enable premium features.
If there is no Activate button - the app is already activated.