How to Create New App Store Screenshots for Your iOS App (Step-by-Step)

What you’ll build in this guide

This guide takes you from an App Store link to an export you can review for App Store Connect:

• A free screenshot audit before checkout; generated designs stay locked until payment
• 10 design variants to choose from (each variant is a 3‑screen set)
• An Editor to crop a 3‑up image into 3 separate screenshots
• Optional Retouch: Enhance → Fix to improve a screen
• A final export ZIP optimized for App Store Connect

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Before you start (2 minutes)

• Have your App Store URL ready.
• Optional (only for Retouch): a short note about what you want to improve.

If your app is not live yet, use the Pre‑launch flow.

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Step 1: Paste your App Store URL

1. Open ScreenFast.
2. Paste your App Store URL.
3. Start the project.

ScreenFast fetches your app metadata and screenshots, then prepares a reference canvas for generation.

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Step 2: Review your free screenshot audit

Before checkout, ScreenFast shows an audit in the Studio chat: an ASO score, a short summary, and screenshot-specific findings. Expand a finding to read the explanation.

All 10 design directions remain locked at this stage. The free step is an audit of your existing screenshots, not a generated image preview. Generation starts after checkout.

Confirm that the app name and source link are correct. If the audit cannot load your app, correct the input before paying.

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Step 3: Pay and generate 10 variants (30 screenshots)

After payment, ScreenFast generates 10 variants. Each variant contains 3 screenshots.

That means you’ll review up to 30 screenshots, pick the best variant, and continue.

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Step 4: Studio - pick a variant

Studio is where you choose the variant you like most.

How to pick quickly:

• Look at screen 1 first: it should be clear in 2–3 seconds.
• Check readability: headline size, contrast, clean layout.
• Don’t overthink it. Pick the one that feels most obvious.

Step 5: Editor - crop the 3 screens

In the Editor, you crop one 3‑up image into 3 separate screenshots:

1. Set the crop area for Screen 1
2. Set the crop area for Screen 2
3. Set the crop area for Screen 3
4. Save / Crop

That’s it — no extra steps.

Step 6: Retouch (optional) - Enhance then Fix

If you see a small issue or want to improve a screen:

1. Write what you want to improve (short and specific).
2. (Optional) Click Enhance — ScreenFast rewrites your prompt into a better one.
3. Click Fix and wait for the updated image.
4. Accept if it’s better.

Good prompt examples:

• “Remove the blurry patch near the top-right corner.”
• “Make the headline text sharper and aligned to the left.”
• “Clean up the background texture behind the phone.”
• “Fix the tiny overlap between the badge and the headline.”

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Step 7: Finalize and download

When you’re happy with the result, finalize the project and download the export ZIP.

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Upload to App Store Connect (iPhone 6.9)

1. Open App Store Connect → your app.
2. Go to Previews and Screenshots.
3. Click View All Sizes in Media Manager.
4. Upload screenshots into the iPhone 6.9" section.

Important:

• Match the exported pixel dimensions to the upload slot. See the current screenshot sizes guide before uploading to another device size.
• Keep the order consistent: Screen 1 → Screen 2 → Screen 3.

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Prelaunch flow (no App Store link)

If your app is not on the App Store yet:

1. Upload screenshots from your app.
2. Write a detailed description (features, audience, what makes it different).
   • The more detail you provide, the better the result.

3. Review the free analysis, then unlock generation through checkout.
4. After payment: generate variants → pick one → crop → retouch → finalize.

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FAQ