You finished the app. You wrote the description. Then you hit the part nobody warns you about: the store listing wants screenshots, and not raw phone screenshots either. It wants the polished kind with headlines and framed devices that every successful app seems to have.
I'm a developer. The first time I shipped, I uploaded plain screenshots straight off the simulator and called it done. Installs were bad. Not because the app was bad, because the listing gave people no reason to tap "Get." Here's what I learned about making App Store screenshots that actually convert, and how I make them now without hiring a designer.
Your screenshots are the ad, not the documentation
The mistake I made was treating screenshots like a manual. "Here's the home screen. Here's the settings page. Here's the profile." Nobody cares.
Almost nobody reads your full description. They swipe the first two or three screenshots, decide in a couple of seconds, and move on. So those images aren't documentation. They're the ad. This is the core of app store optimization on the visual side: the listing has to sell the outcome before anyone has used a single feature.
