Hello Interview wound down its paid 1:1 mock interview and mentorship programs on May 31, 2026 and now sells only self-serve Premium content with AI-guided practice. source
Hello Interview is a self-serve prep site whose free system design guide is the main draw, with Premium ($47 a month, $78 a year, $275 lifetime at the October 2026 sale prices) adding locked problem breakdowns, LLD, concurrency, behavioral content and AI-guided practice. It suits you if you want a cheap, structured system design syllabus and are fine without a human on the other side. Before paying, know that the human mock interview and mentorship programs closed on May 31, 2026 and Premium fees are non-refundable.
The facts
| Category | AI and machine learning, Engineering management, Interview prep programs, Software engineering |
|---|---|
| Website | hellointerview.com |
| Based | Seattle, WA |
| Format | online-self-paced |
| Programs | System Design, Low-Level Design, Concurrency, Coding / DSA, ML System Design, Behavioral, AI-Enabled Coding, Guided Practice (system design, LLD, AI coding) |
| Length | Self-paced; the system design guide suggests 3-4 weeks of preparation for most candidates. unknown |
| Tuition | $47 to $275 Premium on 2026-10-08: 1 month $47 (regular $59), 1 year $78 (regular $119), lifetime $275 (regular $399). Human mock interviews are no longer sold; no per-session price is published. verified |
| Financing | upfront, free Terms: 'Premium access fees are non-refundable. Refunds are provided at Hello Interview's sole discretion.' (https://www.hellointerview.com/terms). Wind-down page: 'Refunds for unexpired credits were processed after May 31' for the discontinued mock program; anyone still owed a refund is told to email [email protected]. |
| Admission | open Free tier covers most of the system design guide and company guides; Premium adds the gated problem breakdowns, courses, and guided practice. |
| Stack | System design (networking, API design, data modeling, caching, sharding, consistency), Redis, Kafka, Cassandra, DynamoDB, PostgreSQL, Flink, Elasticsearch, Low-level design, Concurrency, Data structures and algorithms, ML system design, Behavioral |
Outcomes
This program does not publish job-placement or salary outcomes. Treat any number you hear from admissions as unverifiable.
Interview-prep depth
3 / 5
Public syllabus for the system design guide (core concepts, 10 key technologies, patterns, 17 free plus premium problem breakdowns) and premium courses for LLD, concurrency, coding and behavioral; practice is AI-guided only after the 1:1 program closed.
Job support: structured. Self-serve only since May 31, 2026: courses, 'Guided Practice' with AI feedback for system design, LLD and AI coding, an AI tutor, a reported-question library (homepage says 13,000+, premium page says 5,000+), and 'trip reports'. No human mocks, mentorship, negotiation help, or career coaching.
Whatever the program covers, the interview itself is free to prepare for here: coding patterns, system design, practice prompts, company guides.
What a careful reader should know
Operated by Optick Labs Inc., Seattle WA (privacy policy). Co-founders named on the site are Stefan Mai (blog byline, '1,000+ interviews') and Evan (described as a former Staff Engineer at Meta); the blog says the team is three people. No founding year is published; the earliest HN submission of hellointerview.com is February 19, 2024, and blog posts go back to 2023. The mock interview and mentorship programs ended May 31, 2026, with the founders writing that '1:1 work can only ever reach so many people'. Premium fees are non-refundable under the terms. Homepage and premium page disagree on the question-library size (13,000+ vs 5,000+). Trustpilot shows 4.0 from 3 reviews. Course Report has no listing.
Sources (10)
- hellointerview.com/
- hellointerview.com/blog/lessons-from-building-hello-interview
- hellointerview.com/community/questions?level=MANAGER
- hellointerview.com/learn/system-design/in-a-hurry/introduction
- hellointerview.com/mock
- hellointerview.com/mock/schedule
- hellointerview.com/premium
- hellointerview.com/privacy
- hellointerview.com/terms
- trustpilot.com/review/hellointerview.com
This directory takes no lead fees or placement payments from any program. Where a program runs an affiliate scheme we say so on its page and mark the link. Facts carry a badge: verified means we read it on a primary source on the date shown, reported means a third party said it, unknown means nobody we trust has published it.
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