Screenshot changes — detected by LaunchShots
Screenshot style breakdown
Sampled from 4 of TinyWalk: Health Test Data's App Store screenshots — background, accent and theme, measured by LaunchShots (not something Apple publishes).
#142414 bg
#344234
#9CCCF4 accent
#FFFFFF text
Reading the caption text from the screenshots in your browser…
Screenshots
Icon palette
About this app
TinyWalk is a developer utility for generating synthetic HealthKit test data on a real device. Building or QA-testing an app that reads step counts, walking distance, or workouts? Populating a test dataset by hand in the Health app is slow, and the iOS Simulator cannot reproduce device-only HealthKit behavior. TinyWalk writes well-formed sample data in one tap so you can exercise your read paths, charts, aggregation windows, and permission flows against realistic input. [What it writes] • HKQuantityTypeIdentifierStepCount — as one sample per write, or split into per-minute samples • HKQuantityTypeIdentifierDistanceWalkingRunning — derived at 0.75 m/step, and optional • HKWorkout (.walking) — wraps the per-minute samples in a single session, so your workout-reading code has something to parse [Features] • Seven dataset options: presets at 100, 1,000, 2,000, 3,000, 5,000 and 10,000 ste…
App details
What you can learn from TinyWalk: Health Test Data
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 4 screenshots above are TinyWalk: Health Test Data's answers to those questions — they're public, they're real, and they made it through Apple's review.
What the numbers say: TinyWalk: Health Test Data runs a dark set with one background colour (#142414) 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, #9CCCF4, 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.