Sampled from 6 of Arduino Bluetooth Pro's App Store screenshots — background, accent and theme, measured by LaunchShots (not something Apple publishes).
#4C6464 bg
#657979
#44ECF4 accent
#FFFFFF text
Captions read from the screenshots (OCR, may contain small errors): 5 headlines, 8.2 words on average (longest 19), 40% speak to "you".
High-end, customizable, Bluetooth control for Arduino Projects Connect to and control your Arduino project with this easy-to-use Bluetooth Serial Monitor + Controller Send/Recieve Data - now even with custom voice commands utilizing speech recognition for keywords set by the user Great for any IOT project Command your Drones to take off Tell your Smart Lights to Dance Ask your Robot to bring you a drink Or keep it simple and turn an LED on with nothing but your voice Very easy-to-use GUI Automatically searches for Bluetooth Devices and Bluetooth-enabled Arduino boards or boards with a bluetooth module attached Send data as String format to your boards with whatever you programmed your Arduino to recognize and Receive data back in the Serial Monitor below New features continually added, newest feature is Speech Recognition For D-Pad: Set what Data string sends when each button is Pre…
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 Arduino Bluetooth Pro's answers to those questions — they're public, they're real, and they made it through Apple's review.
What the numbers say: Arduino Bluetooth Pro runs a dark set where the background shifts from screenshot to screenshot (first shot #4C6464) — each image has to stand on its own, so the captions carry more of the story. The accent colour we picked up, #44ECF4, 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.