Question: Looking for an online platform that offers interactive practice tools and feedback to improve my performance in software engineer interviews.

InterviewSpark is an AI-based interview coach that offers personalized and interactive interview prep. It includes real-time conversations with AI, a library of more than 1000 interview questions, personalized training with feedback on your answers, and performance tracking with a scoring system that grades you instantly. The service's tiered pricing includes a free option and a premium option at $9.99/month, so it's useful and affordable for improving your interview skills and gaining confidence.

Another option is Final Round AI, which offers real-time advice and help as you go through an interview. It includes tools like an interview copilot for online interviews, resume optimization, cover letter creation, mock interviews and a coding copilot for coding interviews. With tools for interview summaries and salary negotiations, Final Round AI offers end-to-end career support, not just interview prep. It's designed to help you prepare for interviews in any industry.

If you're concentrating on coding interviews, Pgrammer is an AI-based service that offers personalized lessons through customized coding challenges and real-time hints. It accommodates more than 20 programming languages and gauges question difficulty based on the job you're interviewing for. With features like a history of coding challenges you've completed and advanced solution analysis, Pgrammer is good for candidates and interviewers who need to practice frontend UI development in languages like HTML, CSS and JavaScript.