Check Engine / Help
What do you need help with?
Want to run your first audit, unlock the full report or check a finding? Start with the task below. Each link goes to the guide that explains it.
Get it running on Mac and Windows
- On a Mac: choose the Mac or Intel download and run your first audit.
- On Windows: get the installer or the Microsoft Store app.
Buy and activate
- Check the price and what a purchase includes.
- Find the key on your receipt and paste it into the app.
- Read the licence rules and how to move to another computer.
- Read the refund policy and how to ask.
Read the report
- Understand what an audit covers and how to read it.
- See how findings are put in order.
- Read a score card and see what the full report adds.
- Look up what Check Engine checks.
Use it with an AI assistant
- Set up the local MCP connection on Mac or Windows.
- Choose between a single-page check and a whole-site audit.
Fix a problem
Need to contact us? Get help with a purchase or prepare a bug report.
Still deciding, or just installed? Read the buyer and setup questions.
Common questions
Can I try an audit before I pay?
No key is needed to try Check Engine. The free audit includes your score, each area's problem count and the worst problem with its fix. More: full guide
What does Check Engine cost?
Launch price: $29.50 once, through 30 November. From 1 December: $59. There is no subscription, no crawl credits and no per-seat pricing. More: full guide
Where is my key, and how do I activate?
Use the key sent with your purchase receipt. Enter it in the app's key field to unlock the full audit. More: full guide