Data jobs & talent · DataLemur
DataLemur
Practice-question site for SQL and data science interviews, built around real questions attributed to companies like Meta, Google and Amazon.
DataLemur is a practice-question site for data interviews, with SQL questions run in an in-browser SQL editor (including a gamified "SQL Squid Game" mode) plus data science questions covering statistics, probability and machine learning. Questions are attributed to the companies that reportedly asked them, and free study guides (an SQL interview cheat sheet, company-specific guides) sit alongside the paid question bank. Like StrataScratch and Interview Query, it assumes baseline SQL/analytical competency and is built for interview drilling, not teaching from zero. Its free tier gives a limited set of questions; paid tiers unlock the full 250+ question bank, a bundled video course on the data job hunt, and — on the lifetime tier — a coaching call with the site's founder and a signed copy of his book.
At a glance
| Vendor | DataLemur |
|---|---|
| Pricing model | Free tier + paid plans |
| Free tier | Yes |
| Deployment | Cloud |
| Open source | No |
| Best for | Candidates drilling SQL and data science fundamentals for interviews on a tight budget. |
Pricing
Free tier gives limited questions; paid tiers are monthly, annual or a one-time lifetime purchase, with no discounts or trials.
| Plan | Price | Notes |
|---|---|---|
| Monthly | $15/month | 100+ SQL questions, 70+ data science questions |
| Yearly | $60/year | marked "best value"; adds bonus "Ace the Data Job Hunt" video course |
| Lifetime | $300 one-time | includes 250+ questions, 1-hour coaching call, and a signed book |
Prices read from the vendor's own page on September 21, 2026. Vendors change prices; check the source before you budget.
Features
- SQL interview questions run in an in-browser editor
- Data science questions covering statistics, probability and ML
- Questions attributed to specific companies
- Free SQL cheat sheet and company-specific interview guides
- Bundled "Ace the Data Job Hunt" video course (paid tiers)
- 1:1 coaching call on the lifetime tier
Profile last reviewed September 21, 2026