App promo video from screenshots: a guide
By Sure INSTANT team · Updated on Nov 11, 2026
You do not need to film anything to show what your app or site does. A few well-chosen screenshots, in the right order, already tell the story.
This guide explains how to choose the screens, what Web2Motion adds around them, and which length and size to pick.
Choosing 3 to 8 screens and their order
Web2Motion takes 3 to 8 screenshots, PNG or JPEG, and shows them in the order you set. A long page scrolls inside its frame, so a full-page capture counts as one screen.
- Open with the screen that shows the main benefit at a glance.
- Give each screen one idea, and follow the order a real user would follow.
- Close with the screen that leads to the action you want.
- Use real, tidy content in the screens and remove test data.
Browser or phone frame, and the texts
Wide pictures go into a browser window and tall ones into a phone. The choice is automatic, or you make it yourself.
You write a headline, a title for each screen and a button text, in one or two of six languages, then choose a style, your colours and a sound.
Lengths and the three video sizes
The film runs 15, 30 or 60 seconds. A short length suits a few screens and a quick message, and a longer one gives more screens time to be read.
| Shape | Size in pixels | Where it fits |
|---|---|---|
| Landscape 16:9 | 1920×1080 | YouTube |
| Vertical 9:16 | 1080×1920 | Reels, TikTok, Shorts and Stories |
| Square 1:1 | 1080×1080 | Instagram and Facebook feed |
How to make the video with Web2Motion
- Upload 3 to 8 screenshots and put them in order.
- Leave the frame on automatic, or choose browser or phone.
- Write the headline, a title per screen and the button text.
- Choose the style, your colours, a sound and the language.
- Choose the length and the sizes.
- Watch the free preview, then sign in to get a video and a still image per size, plus a ZIP.
Your site is never opened
The film is made only from the pictures you upload. If you type an address, it is shown as text and nothing more.
The same app screens can also go into Store Listing Kit, which turns them into store screenshots for the App Store and Google Play.