App Store Screenshot Studio

App Store screenshots, handled by your AI agent.

An open-source studio your AI agent drives end to end — it drafts every slide and caption, renders App Store-ready PNGs, then checks and fixes its own layout. All on your Mac. Open the editor only when you want to tweak by hand.

Download for macOS → See how it works

Free · Universal (Apple Silicon & Intel) · macOS 10.15 or later · MIT-licensed source on GitHub

The editor: a canvas with an iPhone frame and caption, an eight-slide thumbnail strip, and a properties panel The Localize step: a slide-by-language caption table with per-locale screenshots across nine languages The Export step: live previews of all eight slides and a one-click ZIP export of 72 App Store-ready PNGs

What your AI agent handles

Drafts the whole project

Your agent writes the slides and captions as plain files. One import turns them into a complete, editable project — frames, text, screenshots, every language.

Renders and fixes itself

A headless pipeline exports each slide at the exact App Store size, inspects the layout, and re-runs until it's clean — without a single click.

Every language by default

Captions live in one slide × language table. The agent fills each language; per-locale screenshots swap in by filename.

Yours to fine-tune

Open the canvas editor for frames, highlight loupes, badges, ornaments, and App-Store-style 2-page panoramas whenever you want hands-on control.

From prompt to store, mostly hands-off

  1. Ask your agent — it drafts the slides and captions as files.
  2. Import — one file selection assembles the whole project.
  3. Render — the headless pipeline exports and self-corrects every language at exact store sizes.
  4. Tweak, optionally — open the editor for any polish, then export the ZIP.

Installing

  1. Open the .dmg and drag Screenshot Studio into your Applications folder.
  2. Launch it — the app is signed and notarized by Apple, so it opens straight away, with no Gatekeeper detour.
  3. That's all — no account, no sign-in. Projects and screenshots stay on your Mac.

Guides

How to use the studio The full workflow — from first screenshot to uploaded set, including the AI-agent pipeline. Let an AI agent edit your screenshots Connect Claude Code over MCP and let it translate, patch and check the project you have open. 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.