App Preview Kit vs Previewed: AI captions vs manual templates

Previewed.app offers a large template library with manual caption entry. App Preview Kit generates captions directly from your product URL — no copy-paste from your website required. If you value design template variety above all else, Previewed has a larger library. If you value speed and AI-written copy specific to your app, App Preview Kit is the faster path.

Previewed does not include an Apple guideline compliance checker. App Preview Kit runs compliance checks before export, flagging safe-zone violations, text legibility issues, and dimension mismatches. This prevents submitting screenshots that trigger an App Review rejection.

For a first-time App Store launch, App Preview Kit reduces the total time investment: paste your URL, review AI captions, approve, export. With Previewed, you'd write every caption manually and check compliance rules yourself. The tradeoff is Previewed offers more visual template variety if you have strong design preferences.