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VERDICT

Should I use StrataScratch?

Data Science & AI Interview Prep - stratascratch.com

Depends. Buy only if you're actively interviewing for data, analyst, or SQL roles — start with the free tier. Skip it if you're not job hunting or need general software engineering prep.

Confidence

Medium. Based on 15+ public sources; source snippets were truncated and exact premium pricing was not verifiable.

Ratings

  • Value for money
  • Ease of useNo direct evidence in sources
  • Feature depth
  • Support qualityNo direct evidence in sources
  • Security posture

Pricing

$0

Free

ModelNot disclosed
Monthly feesNot disclosed
HardwareNot disclosed
Free tierYes
PremiumPaid subscription; exact price not shown in sources

Best for

  • Data science interview candidates
  • SQL and Python skill drilling
  • Career switchers into data roles

Not for

  • General software engineering interview prep
  • Anyone not actively job hunting
  • Guess: total beginners needing teaching, not drills
  • Deep data engineering prep beyond SQL questions

Gotchas - check before you buy

medium

Freemium gating: harder questions and in-depth solutions locked behind premium

medium

User reported account confirmation-link problems; expect some signup friction

medium

Security page returns 404 — no published data-handling posture

low

Promo codes circulate — don't pay full premium price without checking

Pros and cons

Pros

  • 1,000+ real questions from real companies
  • Practice in multiple SQL dialects plus Python and R
  • Free tier to try before paying
  • Praised as the 'LeetCode for data scientists'
  • Newer AI help and data-project grader features

Cons

  • Premium value hotly debated among users
  • Some questions and solutions gated behind premium
  • No published security page — it 404s
  • Some users report frustrating experiences

Sources & method

Analyzed 9/29/2026 - 12 sources - No known vulnerabilities found in the sources reviewed. The site's own security page currently returns a 404.

official x3review x7security x1news x1

Key stats

  • Value for money: 3/5

    Rating

  • $0

    Starting price

  • 12

    Sources

  • Analyzed

  • Value for money: 3/5. Free tier exists; premium's worth is debated on Reddit
  • Ease of use. No direct evidence in sources
  • Feature depth: 4/5. 1,000+ questions, multiple languages, project grader, AI help
  • Support quality. No direct evidence in sources
  • Security posture: 2/5. Security page 404s; no published posture
  • 1,000+ Practice questions Real questions from real companies
  • Yes Free tier Limited questions before paywall
  • $957.4K Funding raised Per Crunchbase — small independent company

Pricing

Free

$0

  • Limited question set
  • Basic practice access

Premium

Paid subscription; exact price not shown in sources

  • Full 1,000+ question bank
  • Premium guides
  • AI help

Security

No known vulnerabilities found in the sources reviewed.

The site's own security page currently returns a 404.

What users say

Reddit and blog reviewers call it challenging, high-quality SQL and data science practice, though opinions split on whether premium is worth paying for.

“Thought I was good in SQL until I tried stratascratch”
Reddit, r/learnSQL
“I've had a frustrating t...”
WorthEpenny user review
Full analysis

Based on 15+ public sources; source snippets were truncated and exact premium pricing was not verifiable.

Real-company SQL/Python question bank for data interview prep — great if you're job hunting, pointless if you're not.

Methodology

Based on 15+ public sources; source snippets were truncated and exact premium pricing was not verifiable.

Sources

  1. review
  2. review
  3. review
  4. review
  5. StrataScratch Pricing pageplatform.stratascratch.com
    official
  6. StrataScratch practice question bankplatform.stratascratch.com
    official
  7. review
  8. review
  9. security
  10. news
  11. WorthEpenny user reviewsstratascratch.worthepenny.com
    review
  12. official

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