How Long Should an App Store Preview Video Be?

App Store preview videos have strict length limits — and optimal lengths that are even shorter. Here's exactly how long your video should be on each platform, and how to make every second count.

Platform limits at a glance

Apple App Store: 15-30 seconds. You get up to 3 previews per localization. Videos must be exactly one of Apple's supported resolutions (e.g., 1920×1080, 1080×1920 for iPhone).

Google Play: 30 seconds to 2 minutes. Only one video slot, sourced from YouTube. Landscape format recommended, though portrait works.

Both platforms auto-play silently in search results and listing pages, so your video must work without sound.

Optimal length: shorter than you think

Just because you can use 30 seconds on iOS doesn't mean you should. Data from app analytics platforms shows:

• 75% of viewers drop off before the 15-second mark on auto-playing previews
• The first 3 seconds determine whether someone keeps watching
• Completion rates are highest for videos between 12-20 seconds

The sweet spot for Apple: 15-20 seconds. For Google Play: 30-45 seconds (shorter videos feel incomplete in the YouTube player context).

What to show in limited time

With 15-20 seconds, you can show exactly 3-4 screens/features. Prioritize ruthlessly:

1. Seconds 1-3: Your single best visual moment — the "wow" screen that makes people stop scrolling
2. Seconds 4-8: The core value proposition in action (not a splash screen, not a login flow)
3. Seconds 9-14: One secondary feature that differentiates you from competitors
4. Seconds 15-20: The result/outcome — what the user achieves by using your app

Never waste preview time on: splash screens, loading animations, onboarding flows, settings pages, or login screens.

Pacing for short-form

The biggest mistake: spending equal time on each feature. Instead, use variable pacing:

• Hero moment: 3-4 seconds (let it breathe)
• Transitions: 0.3-0.5 seconds (fast cross-dissolves or cuts)
• Secondary features: 2-3 seconds each
• Text overlays: minimum 1.5 seconds visibility (people read slowly on mobile)

Apple-specific requirements

Apple is strict about preview content. Your video will be rejected if it:

• Contains footage captured outside the app
• Shows device frames or hands (unless demonstrating gestures)
• Includes pricing that may change
• Uses copyrighted music without proof of license

The safest approach: capture real app footage with screen recording, then add text overlays and transitions. Animated product walkthroughs also work well here — they show the real UI without the risk of capturing stray notifications or personal data.

Google Play differences

Google is more permissive — you can include live-action footage, device mockups, and lifestyle shots. But the video lives on YouTube, so it competes with YouTube's own UI for attention.

Key differences in strategy:

• Include a clear thumbnail (it's a YouTube video, so thumbnail matters)
• Front-load value — many viewers come from YouTube search, not just the Play Store listing
• You can update the video without a new app submission

Testing what works

Both platforms let you A/B test previews (Apple via Product Page Optimization, Google via Store Listing Experiments). Test one variable at a time:

• First frame (strongest predictor of play-through rate)
• Total length (15s vs 25s)
• With text overlays vs without
• Feature order

Run tests for at least 7 days with 1000+ impressions per variant before drawing conclusions.