Frequently asked questions
Clear answers about learning with qa.cafe.
Learning, progress, and access.
Are qa.cafe courses free?+
Yes. The currently published courses and browser-based practice tools are free to use.
Why do I need an account?+
An account is required to enroll, open full lesson content, save completion, and receive a certificate after completing a published course revision.
Can I practice without installing tools?+
Yes. SQL and code practice runs temporarily in your browser. qa.cafe does not persist playground source, files, or output.
Will courses stay free?+
Yes. Publicly released courses remain free. Plus and Pro add more AI requests, more capable AI models, and unlimited code executions.
What AI limits apply?+
Free includes 100 lifetime AI requests with the Core model. Plus costs $10 monthly and includes 1,000 requests each UTC calendar month with a smarter model. Pro costs $20 monthly and includes 2,500 requests each UTC calendar month with the smartest model.
What limits apply to code execution?+
Free includes 200 code executions each UTC calendar month. Plus and Pro include unlimited code executions.