App Store Screenshot Studio

App Store screenshots — designed, localized, exported. Free.

An open-source studio that turns raw app screenshots into polished, multi-language App Store sets: device frames, headlines, highlights, per-locale captions, and pixel-exact PNGs for App Store Connect — entirely in your browser.

The App Store Screenshot Studio editor: a canvas with an iPhone frame and caption, slide thumbnails, and a properties panel

Everything between raw screenshot and store listing

Canvas editor

Device frames for iPhone & iPad, headlines and captions with full typography, magnified highlight loupes, badges, ornaments, multi-slide templates, and App-Store-style 2-page panoramas.

Localization built in

Captions live in a slide × language table. Export it as CSV/JSON, translate it in any AI chat or spreadsheet, re-import. Swap per-language screenshots by filename and preview any locale on the canvas.

Store-ready export

Every slide renders at the exact App Store Connect resolution, alpha-stripped so uploads never bounce, zipped as locale/device/NN.png — or as a ready-to-run fastlane deliver folder.

AI-agent friendly

A documented import manifest lets an AI assistant draft your whole screenshot project as files, and a headless pipeline renders it to final PNGs without a single click.

Four steps, one sitting

  1. Set up — pick device and slide count, or import an AI-drafted project in one file selection.
  2. Design — drop in screenshots, write headlines, frame, highlight, decorate.
  3. Localize — export the caption table, translate anywhere, re-import; add per-language screenshots.
  4. Export — one click renders every slide × language at exact store sizes into a ZIP.

Guides

How to use the studio The full workflow — from first screenshot to uploaded set, including the AI-agent pipeline. App Store screenshot sizes (2026) Every required iPhone & iPad resolution, format rules, and what Apple actually requires. Localizing App Store screenshots A workflow that scales past 3 languages without multiplying design work. Uploading with fastlane deliver Folder layout, API keys, and a screenshots-only Deliverfile. Taking iOS Simulator screenshots The simctl one-liner, the 9:41 status bar, and a loop that captures every locale. Screenshot captions that convert Benefit-first copywriting patterns that survive thumbnail size.