Sampled from 5 of Lora Sniffer's App Store screenshots — background, accent and theme, measured by LaunchShots (not something Apple publishes).
#141414 bg
#343434
#14548C accent
#FFFFFF text
Reading the caption text from the screenshots in your browser…
The LoRaSniffer App is the user-interface for the LoRaSniffer Device. The combination of both, the device and the app, is a tool for technicians and hobbyist allowing to use LoRa radio communications for testing and network maintenance. The LoRaSniffer Device is a LoRa radio module that can use all possible features the LoRa standard offers. This app is its convenient user-interface. It connects via BLE to the device to allow access to all its setup-parameters, receive communications from other LoRa nodes and send data via LoRa. Using 2 coupled LoRaSniffer devices, it can provide valuable information about network quality in a real-world scenario. The app provides a logging window with features for: formatting of received communications, additional time-stamp and the GPS location where each message was received. Each received message is tagged with "Quality of Signal" information as…
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 10 screenshots above are Lora Sniffer's answers to those questions — they're public, they're real, and they made it through Apple's review.
What the numbers say: Lora Sniffer runs a dark set where the background shifts from screenshot to screenshot (first shot #141414) — each image has to stand on its own, so the captions carry more of the story. The accent colour we picked up, #14548C, 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 Developer Tools apps approach the same problem? Browse more Developer Tools 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.