Pricing
Reading is free, forever.
Practising is what costs: the grader spends real compute and every challenge runs your code in its own sandbox.
$0/ month
- 400+ interview questions, all of them readable
- 15 AI-graded answers a month
- 3 concurrency challenges, free to run
- The first 3 saboteur missions
- No card, no expiry
$15/ month
- All 26 concurrency challenges, run against the race detector
- 200 AI-graded answers a month
- All 21 saboteur missions
- Progress tracking and SM-2 scheduling
- A new challenge every month
Pro is not on sale yet. The account you make now stays free, and keeps everything you do in it.
Questions
Why is it cheaper where I live?
Goffer is priced to purchasing power in 46 countries. The discount applies automatically from your location: there is no code to enter and nothing to ask for.
Is tax included?
The price you see is the price you are charged. VAT and GST are already inside it; in the United States sales tax is added at checkout, which is the convention there.
What happens when I get the job?
The concurrency work outlives the interview, which is the point. A new challenge lands every month and the saboteur missions keep coming, so the account is still worth having after you have signed.
Can I cancel?
Any time, and you keep access until the period you already paid for runs out.
cookies: only the strictly necessary ones today — they keep you signed in over on the app. no trackers, no ad pixels. if that ever changes, this is the switch. cookie policy