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AI Animated Word-by-Word Video Captions

Capster turns the speech in your videos into animated, word-by-word captions. Import a clip, tap generate, and every word is transcribed, timed, and r…

In plain English

Capster turns the speech in a video into animated captions, one word at a time. Users import a clip and tap generate. People pay a subscription. TrustMRR shows about $11 a month in recurring revenue and about $35 in the last 30 days. The AI writes captions, while users style them.

Automation80%
Startup costNot disclosed
Time to first $Not disclosed
Monthly range*$11 MRR

~$11 MRR; $35 verified revenue last 30 days (TrustMRR/RevenueCat, Oct 29, 2026)

DifficultyMedium
SourceTrustMRR - Capster: AI Captions for Video ↗

Operator: Not disclosed on TrustMRR

Verified

Revenue independently checked: documents reviewed by a publication, or a public dashboard.

Not disclosed.

The tool stack

RevenueCat ↗
Free up to $2.5k MTR

Mobile subscriptions

 Whisper ↗
Pay per minute (API) or free self-hosted

Speech-to-text

 OpenAI API ↗
Pay per token

LLM / vision

Prices are the vendors' published list prices as researched in Oct 2026 and change often — always check the vendor's pricing page.

Step-by-step setup

  1. Transcribe long videos and find the strongest moments.
  2. Auto-crop to vertical with captions.
  3. Sell by upload minutes or as a done-for-you service.
  4. Target podcasters, streamers and brands.

What's automated vs. the human 20%

The machine does

  • Core AI generation/analysis
  • Billing and onboarding

You still do

  • Product quality and support
  • Distribution and marketing
  • Compliance and edge cases

Overview

Capster turns the speech in your videos into animated, word-by-word captions. Import a clip, tap generate, and every word is transcribed, timed, and ready to style and burn into your video.

Operator: Not disclosed on TrustMRR. Category on TrustMRR: Artificial Intelligence. Website: https://apps.apple.com/us/app/capster-ai-captions-for-video/id6801893002?uo=4

Estimated split: about 80% of the work automated, 20% human.

Realistic income

TrustMRR (checked Oct 29, 2026) shows about $11 MRR and $35 in RevenueCat-verified revenue over the last 30 days, $75 verified over its tracked history. This is one operator’s result, often after months or years of work, and doesn’t predict yours. Check the live listing — numbers change.

Risks

  • Rights: only clip content you or your client own or license.
  • Competes with large clipping tools.
  • Startup cost and time to first dollar are not disclosed.

*Income figures are illustrative ranges based on public pricing and typical outcomes reported by practitioners, not guarantees. Most new online businesses earn little or nothing at first. Not financial, legal or tax advice.

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