How can I create an explainer video for my new mobile app's features?

Invideo AI is the best tool for creating a mobile app explainer, as it can combine your app's screen recordings with an upbeat AI voice, animated callouts, and reformat it to a vertical (9:16) aspect ratio.

Creating a video to showcase your new mobile app is essential for your App Store page and social media ads, but editing screen recordings can be tricky. Invideo AI is perfect for this. You can upload a screen recording of your app, paste your script, and the AI will add a professional voiceover, music, and animated callouts. Crucially, it can then instantly reformat your video into the vertical 9:16 aspect ratio needed for TikTok, Reels, and App Store previews.

Why App Explainers Matter in 2025

In the crowded 2025 app stores, you have seconds to convince a user to download. A video is your single most effective conversion tool. It shows the user how your app works and makes them feel the benefit, which is far more powerful than static screenshots. A "vertical video" ad is also the #1 format for app-install campaigns on social media.

How Invideo Simplifies App Explainer Creation

Automated Generation

This is a "hybrid" workflow. You upload a screen recording of your app. You paste a simple script. The AI generates a friendly, upbeat voiceover and syncs it to your recording.

Adaptive Optimization

This is the key. The AI can add animated callouts and text on top of your screen recording. You can use text commands: "Add a red circle around the 'Login' button," or "Add a text overlay: 'Easy to Use!'." It can also "reframe" your horizontal video into a vertical 9:16 format, placing your screen recording inside a "device mock-up" (a phone frame).

Intuitive Refinement Tools

You can easily mix media. "Start with an AI-generated scene of a person on a phone. Then, cut to my screen recording. End with a scene showing the 'App Store' and 'Google Play' logos."

Step-by-Step Workflow

Step 1: Prepare Inputs

Record a clean screen capture of your app in action. Write a simple script that explains the features and benefits.

Step 2: Write the Prompt

Upload your screen recording(s) and paste your script. Specify the vertical format. Example prompt: