You see, Apple has just launched a campaign called “Start something new.” Essentially, this campaign features a gallery of artistic pieces that Apple hopes will inspire people to, well, start something new by using iOS and Mac devices in conjunction with creativity apps. One of the apps highlighted in the campaign happens to be Waterlogue, which Apple has decided to give away through the Apple Store app on iPhone and iPod touch.
To get Waterlogue at no cost, just go to the Featured section of the Apple Store app (not to be confused with the App Store app), in which the “Start something new” campaign is prominently featured. Scroll down the section until you see the banner that says, “Download Waterlogue free,” as shown in the screenshot below. Tap this banner to bring up the download screen for Waterlogue, which includes the following description for the app:
Waterlogue transforms your photos into luminous watercolors. Customize your image by controlling color, pen outlines, and depth. Save your creations in high resolution and use the share feature to inspire your friends.
Download Waterlogue free.
Tap “Download now for free” at the bottom of the screen, tap “Continue” on the dialog box that appears to open the App Store app, enter your Apple ID password when prompted, check that your unique promo code is automatically entered in the resulting code redemption screen, tap “Redeem” at the top-right corner, and that's it. Waterlogue should begin installing on your iOS device.
Note that the free downlad offer for Waterlogue, which expires on Jan. 31, appears to be accessible through the Apple Store app on iPhone and iPod touch, but not on iPad. However, since it's a universal app, Waterlogue is readily available for your iPad once you've successfully downloaded it to your iPhone or iPod touch.