Question 1

Is PrepOS free?

Accepted Answer

Yes. PrepOS is free to use and runs in your browser. No account required.

Question 2

What is a PM interview simulator?

Accepted Answer

A PM interview simulator is a tool that gives you realistic product manager interview prompts on demand and helps you practice with feedback. PrepOS goes a step further: it picks the highest-impact next rep based on your target level, weakest concepts, and how close your interview is.

Question 3

Which PM interview rounds does PrepOS cover?

Accepted Answer

Six round types: product sense, execution, AI product judgment, behavioral, strategy, and technical collaboration. Each round is mapped to specific concepts so you can train weakest areas instead of grinding generic question banks.

Question 4

How is PrepOS different from generic PM interview practice tools?

Accepted Answer

Most tools are flat question dumps. PrepOS is adaptive — it tells you which rep moves your readiness next, calibrated to APM, PM, Senior, Staff, AI PM, or PM-T target levels. The rubric is open and visible, not a black-box score.

Question 5

Does it score answers with AI?

Accepted Answer

MVP1 uses a transparent keyword-and-structure rubric. LLM-based scoring is on the roadmap and will be opt-in.

Question 6

How fresh is the question bank?

Accepted Answer

The bank ships with 250 reviewed PM interview prompts and is updated weekly. Every prompt has a reviewer name, source type, and (if applicable) citation.

Question 7

Who is PrepOS for?

Accepted Answer

Candidates targeting APM, PM, Senior, Staff, AI PM, or PM-T loops at product-led companies.

Question 8

Does my data leave the browser?

Accepted Answer

No. Your answers, scores, and progress live in your browser. PrepOS does not collect or transmit your answers — only aggregate page-view analytics.

All 18 PM interview concepts, mapped to round types

Product sense (3)

Execution (3)

AI judgment (4)

Behavioral (3)

Strategy (2)

Technical (3)