Our story
Turn a one-line idea into something you can argue with.
I'm Johnny Mobley. I started building systems for other people in 2000, when I was 16, and I've been doing it ever since. Along the way I automated most of my own work, and the tools I built for myself became these companies. Each one runs on rules I wrote down, not on paid AI calls, which is why it can cost so little.
Most ideas die vague. Before anyone writes code, someone has to say who it's for, what the one thing v1 must do is, and what to leave out. Aicossic does that first pass: type the idea in a sentence and get back a short spec.
It reads your sentence with rules I wrote: who the users are, what they want to do, and what kind of product it is (a marketplace, a booking tool, a tracker and so on). Each kind has its own list of things to leave out of v1 and the questions you'll have to answer. It's a starting point, not a verdict on whether the idea is good.
What works today
- Turns a one-sentence idea into a short spec: the problem, who it's for, the one core feature for v1, what to leave out, and the open questions
- Runs on hand-written rules, with no AI model
What it doesn't do yet
ChatPRD still does things Aicossic doesn't:
- Full product requirement documents, user stories or acceptance criteria.
- Saving your specs or working on them with a team.
- Prototypes or exports to code tools.
- Tracking competitors.
What it costs
| What you get | Price | |
|---|---|---|
| ChatPRD Pro, billed yearly | Unlimited chats and documents written by premium AI models, templates, saved projects and integrations. Their free plan gives 3 short chats. | $15/mo |
| Aicossic | Everything above, no account needed. An optional $4.00, 30-day pass accepts longer idea descriptions (4,000 characters instead of 1,000). | Free |
ChatPRD's price is from their pricing page as of October 29, 2026. Prices change, so check theirs before you compare.
Spec my idea— Johnny