Chart position — tracked daily by LaunchShots
Screenshot changes — detected by LaunchShots
Screenshot style breakdown
Sampled from 6 of Programmer Calculator: Hex's App Store screenshots — background, accent and theme, measured by LaunchShots (not something Apple publishes).
#1C141C bg
#3B343B
#54D454 accent
#FFFFFF text
Reading the caption text from the screenshots in your browser…
Screenshots
iPad screenshots
Icon palette
About this app
Hex, decimal, octal and binary — all four bases on one screen, updating as you type. Programmer Calculator is a base converter and bitwise calculator for developers, engineers and computer science students. CALCULATE IN ANY BASE • Enter an expression in hex, decimal, octal or binary and read the result in all four at once • Arithmetic with +, −, ×, ÷, parentheses and operator precedence • Bitwise operators: AND, OR, XOR, NOT, shift left and shift right MATCH YOUR INTEGER TYPE • Word size: 8, 16, 32, 64 bits or unlimited • Signed or unsigned representation SEE EVERY STEP • Open the steps view on any calculation • Every operation and intermediate value, in the order they are applied HISTORY • Every calculation you confirm is saved on your device • Tap an entry to bring it back into the calculator BUILT FOR THE JOB • Light and dark mode • iPhone and iPad, in portrait and landscape • N…
App details
What you can learn from Programmer Calculator: Hex
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 12 screenshots above are Programmer Calculator: Hex's answers to those questions — they're public, they're real, and they made it through Apple's review.
What the numbers say: Programmer Calculator: Hex runs a dark set with one background colour (#1C141C) 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, #54D454, 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.