Sampled from 4 of Cantook by Aldiko's App Store screenshots — background, accent and theme, measured by LaunchShots (not something Apple publishes).
#D46C64 bg
#DA8079
#8C84E4 accent
#FFFFFF text
Welcome to Cantook! The favorite reading app for the true bookworms. Bring all your eBooks, comics and audiobooks in the same place, no matter where they're coming from. Available on iPhone, iPad or macOS. With Cantook, we make it easy to bring all your books in the same place: • Built-in support for public libraries, allowing you to easily browse your library's catalog and borrow books from them • Thousands of public domain books from the Cantook Bookstore • Import your own EPUB, CBZ or PDF files • Add your own catalogs, for example using Calibre Cantook provides an extensive set of features for both casual and power users: • Customize your reading experience with multiple fonts and themes • Full support for dark mode throughout the app • Organize your bookshelf with categories and collections Our philosophy is to contribute to and leverage open standards: • Read EPUB files via a R…
Every shipping app on the App Store has gone through the same decisions you're working through right now: which screenshot goes first, what caption sits over it, which device frame to show, what color the background should be. The 8 screenshots above are Cantook by Aldiko's answers to those questions — they're public, they're real, and they made it through Apple's review.
What the numbers say: Cantook by Aldiko runs a mixed light-and-dark set where the background shifts from screenshot to screenshot (first shot #D46C64) — each image has to stand on its own, so the captions carry more of the story. The accent colour we picked up, #8C84E4, is the one to reuse for badges, arrows and highlighted words if you borrow this look. Hit Use this style to open the editor with these exact colours and drop your own screenshot in.
Notice the first screenshot in particular. It's the one users see in search results and on the product page, and it's where most apps spend their best caption and tightest design. Look at the proportion of background to phone, where the text sits, what one thing the image is trying to communicate.
Want to see how other Book apps approach the same problem? Browse more Book apps in the showcase.
Open LaunchShots and design your App Store & Google Play screenshots — pick a device frame, drop captions, ship in minutes. Free, in your browser.
Open the screenshot editor →Closest background + accent colours among the listings we've analysed — useful when you want to see the same palette handled by a different team.