Sampled from 6 of Booktrace's App Store screenshots — background, accent and theme, measured by LaunchShots (not something Apple publishes).
#1C1C1C bg
#3B3B3B
#EC344C accent
#FFFFFF text
Track every book you read or listen to, and actually see how far you've come. Booktrace started as the tracker for audiobook people — narrators, real hours, playback speed — and now takes print books and ebooks too. Add a book, say what format it is, and start a session. An audiobook moves forward by the minutes you listened. For a paperback or an ebook you set where you're up to, and Booktrace keeps the minutes. YOUR BOOKSHELF Photograph the spine of a real book and it stands on a shelf inside the app. Lean it, stack it, drag it into place, and add a plant, a lamp, or a photo. A bookshelf that looks like yours, because it is. A LIBRARY SIZED TO YOUR BOOKS Duration bars show how long each audiobook really is, not a uniform tile, so a 30-hour epic looks like one. Browse your whole collection as a wall of covers, and see your history as a calendar of book covers. A SESSION DIAL YOU CA…
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 6 screenshots above are Booktrace's answers to those questions — they're public, they're real, and they made it through Apple's review.
What the numbers say: Booktrace runs a mixed light-and-dark set where the background shifts from screenshot to screenshot (first shot #1C1C1C) — each image has to stand on its own, so the captions carry more of the story. The accent colour we picked up, #EC344C, 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.