AI Body Fat Estimator
Fat Detective is a web tool focused on estimating the body fat percentage of users provided with feedback. With monthly recurring plans.
In plain English
Fat Detective is a website that estimates how much of a person's body is fat and then gives feedback. You send in a photo, and the AI makes the estimate on the site. People pay a monthly plan because they want that estimate and the notes that come with it, without a long manual process. The AI does almost all of the estimating and the billing. The owner still checks quality, reviews odd results, and helps users when a photo is hard to read.
$136 verified revenue last 30 days, mostly non-recurring (TrustMRR/Stripe, Oct 28, 2026)
Operator: Not disclosed on TrustMRR
Revenue independently checked: documents reviewed by a publication, or a public dashboard.
Not disclosed.
The tool stack
Payments
fal.ai ↗Image/video model inference
Next.js ↗Web app framework
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
- Wrap image models in a simple web app.
- Sell credits or coins before generation.
- Moderate prompts and outputs.
- SEO pages per style or use case.
What's automated vs. the human 10%
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
Fat Detective is a web tool focused on estimating the body fat percentage of users provided with feedback. With monthly recurring plans.
Operator: Not disclosed on TrustMRR. Category on TrustMRR: Artificial Intelligence. Founded: 2025-03-06. Website: https://www.fatdetective.com/
Estimated split: about 90% of the work automated, 10% human.
Realistic income
TrustMRR (checked Oct 28, 2026) shows $136 in Stripe-verified revenue over the last 30 days, $4,148 verified over its tracked history. Most of this revenue is one-time, not recurring. 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
- Commodity category; margins depend on model costs.
- Needs strict content moderation.
- 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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