PreviewedAlternativeFaster & Simpler.

Forget complex 3D mockup editors. ScreenFast generates professional App Store screenshots in seconds with AI. One-time $9.99, no subscriptions.

  • boltBoost your App Store conversion rate (CVR)
  • trending_upStop losing users with ugly screenshots
  • auto_awesomeDesign patterns inspired by Top‑100 grossing apps
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Tinder - Before and After
Duolingo - Before and After
Google - Before and After
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App names, logos, and screenshots shown are trademarks of their respective owners. Used for illustrative purposes only. ScreenFast is not affiliated with or endorsed by these companies.

ScreenFast vs Previewed — Side by Side

FeatureScreenFastPreviewed
Price$9.99 one-time$8/mo ($96/yr)
AI Generation10 unique AI designsNo — manual 3D mockup editor
Time to Result~2 minutes15–45 minutes per scene
ApproachAI-generated 2D designs3D device mockup rendering
BillingOne-time paymentMonthly subscription
Design SkillsNone required3D scene composition

Why Developers Switch from Previewed to ScreenFast

Previewed is a specialized 3D mockup tool that lets you place your screenshots inside photorealistic device frames, adjust camera angles, and render polished scenes. It's a powerful tool — but it comes with a learning curve and a monthly subscription.

For most indie developers, the 3D mockup workflow is overkill. You spend 15–45 minutes per scene arranging devices, tweaking lighting, and waiting for renders. With ScreenFast, you paste your App Store URL and get 10 completely different design concepts in about two minutes — no 3D skills required.

The cost difference is substantial. Previewed's Pro plan runs $8/month ($96/year), and you need to stay subscribed to create new mockups. ScreenFast is $9.99 one-time per app. For a developer with one or two apps, that's a savings of $86+ per year.

Previewed remains the better choice if your brand requires specific 3D compositions with custom angles and lighting. But for getting great-looking App Store screenshots up quickly, ScreenFast is faster, cheaper, and requires zero design expertise.

Frequently Asked Questions

How is ScreenFast different from Previewed?

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Previewed is a 3D mockup tool where you manually position screenshots inside device frames, adjust camera angles, and render scenes. ScreenFast uses AI to generate complete screenshot designs automatically — no 3D editing, no manual positioning, no rendering wait times.

Is ScreenFast cheaper than Previewed?

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Yes. Previewed's Pro plan costs $8/month ($96/year). ScreenFast is a one-time $9.99 payment per app. You save $86+ in the first year, and there are no recurring charges.

Can ScreenFast create 3D mockups like Previewed?

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ScreenFast generates 2D screenshot designs optimized for App Store conversion, not 3D renders. If you specifically need 3D device mockups with custom camera angles, Previewed is better suited. For most App Store listings, ScreenFast's AI-generated designs perform equally well or better.