title: iOS downloading a lot of images, best possible solution
body: <p>Some time ago I posted this question:
  <a href="https://stackoverflow.com/questions/29344043/cordova-phonegap-downloading-a-lot-of-images-best-possible-solution">Cordova / Phonegap downloading a lot of images, best possible solution</a></p>
  
  <p>But no one really answered that.</p>
  
  <p>I decided to do same application, but in Objective C for now.
  But I still have same problem :)</p>
  
  <p>So, I have iOS app developerd using Objective C and XCode.
  This app is suppose to work both offline and online.
  If user is launching app for the first time, he sees progress bar and all the data and images are fetched and downloaded to his device.
  After that process app is reloading (starting again)</p>
  
  <p>It works, but I think that first start of app is simply too slow (it's over 800 images) It takes more than 7 minutes, which is really bad for user experience.</p>
  
  <p>Here are some of my strategies:</p>
  
  <ul>
  <li><p>Download all the images as single ZIP file and extract it into device</p></li>
  <li><p>Download only some part of images (25% ?) and then download rest of them in the background, while user can use his app. Use some kind of images placeholder at some places ?</p></li>
  </ul>
  
  <p>Which strategy is the best ? Maybe someone has similar experience ?</p>