EasyMobile AppFrontierClear niche and buyerAI model/API accessPayments via Stripe

Operator-Reported

Safe AI Companion for Kids

Safe AI for kids

In plain English

Yoggi is an AI chat buddy made for children aged 3 to 15, with safety rules and parent controls. Parents use it instead of letting kids use adult chatbots. They pay a monthly subscription. Trust and safety are the whole product.

Automation85%

Startup costNot disclosed

Time to first $Not disclosed

Monthly range*$347 /mo

$347/mo operator-reported revenue (Indie Hackers product page, Oct 29, 2026)

DifficultyEasy

SourceIndie Hackers - Yoggi ↗

Operator: LucasWaffle

Operator-Reported

A named, real operator ran this and shared results publicly. The figures are their own.

Not disclosed.

The tool stack

RevenueCat ↗

Mobile subscriptions

LLM / vision

iOS distribution

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

Create quizzes from notes or topics with AI.
Share quizzes with a class.
Subscription for unlimited use.
Grow via teachers and App Store search.

What's automated vs. the human 15%

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

Safe AI for kids. Kids aged 3-15 already meet AI online, often unsupervised, on tools built for adults. Yoggi gives them an age-adapted AI companion instead, with real safety guardrails and parents kept in the loop, not shut out

Operator: LucasWaffle. Website: https://yoggichat.app

Estimated split: about 85% of the work automated, 15% human.

Realistic income

The founder reports $347 per month in revenue on their Indie Hackers product page (checked Oct 29, 2026). This figure is self-reported and not verified by Stripe or any third party. This is one operator’s result, often after months or years of work, and doesn’t predict yours. Check the live source — numbers change.

Risks

Seasonal school usage.
Free alternatives exist.
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.