Show the app in the first second
On a feed, people decide almost at once whether to keep watching. Open on your best screen with one line of type, not on a logo. Say so in your prompt, for example: open on the camera screen.
App promo video maker for iOS and Android apps
Voom makes promo videos for mobile apps, for social ads, launch posts and your app’s website. Upload your app’s screenshots, say what it does and who it is for, and Voom animates the screens with type, a voice-over, original music and optional captions, in 9:16, 1:1, 4:5 or 16:9. Your first video, up to 30 seconds, is free.
Prompt A 30-second vertical promo for Mossy, a plant-care app: snap a photo of a plant, Mossy names it and reminds you when to water. Bright and friendly, for Instagram Reels and the app's website. Captions on.
How do you make an app promo video with Voom?
- 01
Add your app’s screens
Upload the three to five screenshots that show the app at its best. Add the app’s website link to the prompt if you want Voom to take its colours, icon and copy too.
- 02
Say the one promise
What the app does for whom, in one line. Add the facts that must appear, such as a free trial or the platforms it runs on.
- 03
Pick the size
9:16 for Reels, TikTok and Stories, 1:1 or 4:5 for feeds, 16:9 for YouTube and your site. Voom renders the MP4 with the voice, music and captions.
How to make an app promo people stop for
One promise, three screens
A 20 to 30 second promo has room for one promise and about three screens that prove it. Name the screens in your prompt in the order you want them, and keep the rest for your store listing.
Made for sound off
Many people scroll with the sound off, so put the promise in large type and captions, not only in the voice-over. Voom’s captions follow the voice and are burned into the video.
Where the video can go
Apple’s App Store Review Guidelines (section 2.3.4) say app previews may only use screen captures of the app itself, with narration and overlays allowed. A designed promo belongs in ads, social posts and your website. Google Play’s store listing takes a YouTube link instead.
Prompts to start from
- Example prompt
A 30-second vertical promo for my app: open on the main screen, show the three screens that prove what it does, end on the download line. Bright, captions on.
Use this prompt - Example prompt
A 15-second Reels ad for our budgeting app: the problem in one line, the app solving it on our real screens, then ‘Free on iPhone and Android’.
Use this prompt - Example prompt
A 45-second promo for our app’s website, in 16:9: who it is for, what it does on three screens, and one clear call to download.
Use this prompt - Example prompt
A 30-second square promo for our new Android widget, on our own screenshots, for Instagram and Facebook.
Use this prompt
Why app makers use Voom for promos
-
Your real screens
Upload up to 20 screenshots and Voom animates them into the story, with zooms and type where the voice-over names them.
-
Every feed size
9:16, 1:1, 4:5 and 16:9, at 1080 pixels on the short side.
-
Captions for silent feeds
Captions that follow the voice, burned in, so the promo works with the sound off.
-
Launch in every market
20 voices, each able to speak every one of Voom’s 23 languages.
What does an app promo video cost?
A 30-second promo uses 13 credits, about $0.67 on Pro. Your first video, up to 30 seconds, is free, with a small watermark.
Questions, answered
Collect three to five screenshots that show what the app does, write one line on who it is for, and give both to an AI video maker. Voom animates the screens with type, a voice-over, original music and optional captions, and renders a vertical, square or wide MP4 for ads, social posts and your website.
Usually not. Apple’s App Store Review Guidelines (section 2.3.4) say app previews may only use video screen captures of the app itself, though narration and text overlays are allowed. A designed motion graphics promo fits ads, social posts and your website. Google Play’s store listing takes a YouTube link; check its policies before you add one.
Yes, but it is better with them. Without screenshots or a link, Voom designs the screens itself from your description, which suits a concept or a pre-launch teaser. The sample film on this page was made that way, for an app that does not exist. For a real app, upload your own screens.
Use 9:16 (1080 × 1920) for Reels, TikTok, Shorts and Stories, 1:1 (1080 × 1080) or 4:5 (1080 × 1350) for Instagram and Facebook feeds, and 16:9 (1920 × 1080) for YouTube and your website. Voom makes all four; pick the size before you make the video.
For social ads, 15 to 30 seconds: one promise and about three screens. For your website or YouTube, 30 to 60 seconds leaves room to show a full task. Voom’s free video runs up to 30 seconds and Pro up to 90 seconds.
Keep reading
-
Cost and choices
Best app promo video makers in 2026: for the App Store, Google Play, ads and launch posts
Eight app promo video makers, checked on 3 November 2026 and sorted by where the video plays: App Store previews, Google Play, ads, social and launches.
11 min read
-
What to make
Social media video sizes: aspect ratios, pixels and safe zones by platform
The social media video sizes YouTube, Instagram, Facebook, LinkedIn and X publish, with safe zones in pixels. Pick your shapes before you export.
9 min read
-
What to make
Captions for social media videos: why they matter and how to add them
Why captions for social media videos matter, how burned-in and closed captions differ, what WCAG and each platform ask, and five checks before you post.
8 min read
Your first video is one sentence away.
Free to start. No card, no timeline, no stock templates.
Make an app promo