Chart position — tracked daily by LaunchShots
Screenshot changes — detected by LaunchShots
Screenshot style breakdown
Sampled from 6 of Scientific Calculator Plus 991's App Store screenshots — background, accent and theme, measured by LaunchShots (not something Apple publishes).
#2C2C2C bg
#494949
#FC6404 accent
#FFFFFF text
Screenshots
iPad screenshots
Icon palette
About this app
NCalc — Powerful Scientific Calculator, Graphing, and Converter NCalc combines a natural-display scientific calculator, advanced maths tools, a full graphing module (as 83/84 calculator), a large formula library, and a comprehensive unit and currency converter—designed for students, engineers, and anyone who loves maths. ◉ Main Calculator Features - Natural display: Enter expressions exactly as in textbooks—fractions, roots, exponents, and more—see results as written on paper. - Keyboard layout: Matches popular models for familiarity and speed: 115 ES Plus, 991 ES Plus, 300 ES Plus, and 991 EX. - Symbolic and numeric modes: Perform exact fraction calculations or evaluate numerically when needed. - Arbitrary‑precision integers: Work with very large integers without losing accuracy. - Output types: Choose from fraction, mixed fraction, decimal, recurring decimal, degrees/minutes/seconds…
App details
What you can learn from Scientific Calculator Plus 991
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 11 screenshots above are Scientific Calculator Plus 991's answers to those questions — they're public, they're real, and they made it through Apple's review.
What the numbers say: Scientific Calculator Plus 991 runs a mixed light-and-dark set where the background shifts from screenshot to screenshot (first shot #2C2C2C) — each image has to stand on its own, so the captions carry more of the story. The accent colour we picked up, #FC6404, 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.
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.