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InterrogoAI

AI-powered Micro-SaaS for oral exam training with adaptive mock interviews.

Apr 13, 2026 Education & Learning
ai simulations exam preparation oral exams

About

Interrogo AI is a production-ready micro-SaaS for oral exam preparation.

Users upload study material or paste text, choose an exam mode and teacher style, and get AI-led oral simulations with instant scoring and feedback.

This is a working SaaS, not a template or unfinished MVP.

The product is live-ready, Stripe is integrated, and the monetization flow is implemented end-to-end.

How It Works

1. User signs up and logs in.

2. User starts a session from their dashboard.

3. User uploads study content (PDF/text) or selects a topic.

4. AI runs an oral-style exam (Quick Test, Standard, Extended, Deep).

5. User receives score, weak-point analysis, and improvement guidance.

6. Stripe handles upgrades, renewals, and billing sync.

Monetization (Already Implemented)

- Free: 10 exam sessions/month

- Pro: €9.99/month, unlimited sessions

- Stripe checkout + webhook lifecycle handling already integrated

- In-app plan management and status sync already implemented

Operating Costs

- Backend hosting (DigitalOcean): about $5/month

- Database (Neon Postgres): free tier

- AI generation (Groq): free quota

- Stripe: fees only on successful payments

Why It’s Valuable

- Fully functional SaaS, not boilerplate

- Real subscription monetization already in place

- Very low fixed monthly overhead

- Clear use case in education/exam prep

- Strong base for growth via content, schools, or paid acquisition

Reason for Sale

I am focused on scaling a larger SaaS and cannot actively grow two products in parallel.

Interrogo AI is stable and ready for a buyer focused on acquisition and growth.

Included in the Sale

- Full source code (frontend + backend)

- Documentation and deployment steps

- Stripe setup handover

- 7 days post-sale support

Comments (1)

Jocelyn Fisher Jocelyn Fisher 6 months ago

teacher style option is what sets this apart from basic quiz tools