Sampled from 4 of Joinstick's App Store screenshots — background, accent and theme, measured by LaunchShots (not something Apple publishes).
#040404 bg
#272727
#6CC484 accent
#FFFFFF text
Captions read from the screenshots (OCR, may contain small errors): 4 headlines, 10.8 words on average (longest 16).
Most of what you learn in a training class fades within days. Joinstick makes it stick. Joinstick is your learning companion for onsite classes. Instead of forgetting the moment the session ends, you keep remembering, practicing, and mastering new skills — one Challenge at a time. WHY LEARNERS LOVE JOINSTICK • Remember more. Bite-sized Flash Cards and Recall Quizzes bring key ideas back at just the right moments, so knowledge moves into long-term memory. • Practice for real. Take on Missions and Challenges from your Speaker, submit your work, and get scored on how you actually apply what you learned. • See your transformation. Your Shificiency Score shows how far you've come — combining what you recall, how you practice, and how deeply you reflect and consolidate. HOW IT WORKS — THREE SIMPLE PHASES BEFORE CLASS Enroll with a code or invite link from your Speaker — from anywhere, …
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 8 screenshots above are Joinstick's answers to those questions — they're public, they're real, and they made it through Apple's review.
What the numbers say: Joinstick runs a dark set with one background colour (#040404) 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, #6CC484, 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 Education apps approach the same problem? Browse more Education 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.