Screenshot style breakdown
Sampled from 6 of BLE Insight - BLE Dev Tool's App Store screenshots — background, accent and theme, measured by LaunchShots (not something Apple publishes).
#14048C bg
#34279C
#9C94E4 accent
#FFFFFF text
Reading the caption text from the screenshots in your browser…
Screenshots
Icon palette
About this app
BLE Insight is a powerful Bluetooth Low Energy development tool designed for developers, engineers, and IoT professionals. Scan, connect, and communicate with any BLE device — all from your iPhone. Visualize every detail of BLE communication with real-time sequence diagrams, live RSSI monitoring, and interactive data graphs. KEY FEATURES • Device Scanner Discover nearby BLE devices instantly. View device names, RSSI signal strength, and detailed advertisement data including service UUIDs, manufacturer data, and TX power. • Service & Characteristic Explorer Browse all services and characteristics of connected devices. Read, write, and subscribe to characteristics with a single tap. Supports Hex, UTF-8, and Decimal data formats. • Real-Time Sequence View Watch BLE communication unfold in real time. Every connection event, service discovery, read, write, and notification is displayed …
App details
What you can learn from BLE Insight - BLE Dev Tool
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 BLE Insight - BLE Dev Tool's answers to those questions — they're public, they're real, and they made it through Apple's review.
What the numbers say: BLE Insight - BLE Dev Tool runs a dark set with one background colour (#14048C) carried across every screenshot — the listing reads as a single poster when the shots sit side by side in search results. The accent colour we picked up, #9C94E4, 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.
Take what works into your own screenshots
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 →Apps with a similar look
Closest background + accent colours among the listings we've analysed — useful when you want to see the same palette handled by a different team.