App Preview Kit vs AppMockUp: which screenshot tool ships faster

AppMockUp is a template-driven tool: you select a template, drop in your screenshots, and adjust manually. App Preview Kit reads your product URL and writes captions specific to your app automatically. The practical difference is that AppMockUp requires 30–60 minutes of manual caption writing, while App Preview Kit generates and checks captions in under 2 minutes.

As of 2026, AppMockUp does not include AI caption generation. You write the captions yourself, choosing from preset font layouts. App Preview Kit generates captions from your product site, so the copy reflects your actual app's features rather than generic placeholder text.

App Preview Kit supports 12+ language locales with automatic RTL layout flipping for Arabic and Hebrew. AppMockUp supports localization by duplicating projects manually and editing text per language — viable for 2–3 languages, but time-consuming at scale. For apps launching in 5+ markets simultaneously, the difference can be 30 minutes versus 3 hours.