Please follow the steps suggested to re-download your purchased apps from the Apple store:

  1. Open the App Store on your device. 
  2. Make sure you are signed in with the same Apple ID used for the original purchase. 
  3. Tap Updates from the bottom navigation bar. 

    4. Tap on Purchased on navigation bar

  4. Tap Purchased on the resulting screen.

    5. purchased screen

  5. Locate the app in your Purchased tab.
  6. Tap the download button.

    7. download button

  7. The app will begin downloading and you'll be taken back to your home screen.