Product feature explainer
One feature, why it matters, how to use it.
Explanatory Video Maker: Topic to Narrated Explainer
An explanatory video maker turns a topic or question into a short narrated video that explains it step by step. Reviral's creator writes the script, picks supporting scenes, adds a voiceover and timed captions, and a 15-second explainer costs 244 credits (~$3.04) with the default settings.
No credit card required to try — sign in with email or Google.
- Start from a topic or a question
- Educational tone in the creator settings
- Voiceover from 100+ voices, timed captions
- 9:16, 16:9 or 1:1
How to get a clear explanation
Ask one question per video, such as how compound interest works, and set the educational tone. The creator writes a script that states the answer first and then shows it.
Read the script before rendering. Change any step that is wrong for your audience; the creator is a writer, not a fact checker.
Languages, voices and shapes
Choose from 30 script languages and more than 100 voices, and render 9:16 for phones, 16:9 for a course or website, or 1:1 for feeds.
A 15-second explainer costs 244 credits (~$3.04); longer explainers cost more and the price updates before you render. Videos from an account that has never paid carry a small Reviral logo; buying any credit pack removes it.
Ways to use this tool
Training snippet
A 30-second how-to for a new team member.
Finance or science fact
One surprising idea explained with simple visuals.
FAQ answer video
Turn a common customer question into a captioned answer.
How it works
Step 1
Open the creator
The Try button opens the text-to-video creator.
Step 2
Type the topic
One question or idea per video.
Step 3
Set tone, voice and shape
Educational tone, a voice, a language and an aspect.
Step 4
Review and render
Read the script, then render.
Real examples
Click any example to play it. Every clip below is an existing Reviral render.
Tutorial explainer
What it costs
A 15-second video with the linked creator's default Pro settings costs 244 credits (~$3.04).
Changing the video's length, media type, or resolution can change the final price.
Prices checked 21 October 2026. Dollar figures use the $4.99 Mini Pack rate. Cached for up to 1 hour.
Frequently asked questions
- What is an explanatory video?
- A short video that explains one idea, process or product in plain words, usually with a narrator and on-screen captions.
- Can I make an explanatory video without recording my voice?
- Yes. The creator adds an AI voiceover from more than 100 voices and times the captions to it.
- How much does an explanatory video cost?
- A 15-second explainer costs 244 credits (~$3.04) with the default settings. Sign-up gives 100 free credits with no card, and the exact charge shows before anything renders.
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