DataLemur
Established LeaderAce the SQL & Data Science Interview
datalemur.com HR & Careers / Interview Preparation
- Monthly visits
- 523.3K
- Down17.7%MoMSep 2026
- Entry price
- $15/mo
- Higher than 53% of peersNiche median $13.125/mo
- Launched
- 4y ago
- 2022-08-24 · Est.
Traffic & revenue
- Sep 2026$1,500Self-reported MRR · unverified
Revenue evidence
Publicly disclosed & verified revenue figures, sorted by dateMarketing moves
Launches, search & content, referrals, promotions- 6,000-Word SQL Interview Guide for Data Analysts & Data Scientists. It Covers: 🔹SQL Questions from FB, Amazon, etc. 🔹Must-Know SQL Commands 🔹6-Step Process to Solve Hard Questions 🔹Sites to Practice SQL Questions 🔹4 Take-Home SQL Chal
@nicksinghtech · 2026-11-03 · 2 likes · 0 reposts · 555 views
- 😎.😎 😎
@nicksinghtech · 2026-11-06 · 0 likes · 0 reposts · 566 views
- "nuclear is great and works well and lowers energy costs" politicians & regulators: "as long as nuclear plants comply with strict safety & environmental rules and the local community approves it's no problem" 40 years later, nothing got b
@nicksinghtech · 2026-11-06 · 1 likes · 0 reposts · 653 views
DataLemur launched on Show HN (16 pts · 5 comments)Launch
DataLemur – Ace the SQL Interview! — I just launched a new free SQL practice platform today called DataLemur! I'm the author of Ace the Data Science Interview, and a lot of ou…
Aug 24, 2022 · 4y agoSource
Third-party reviews & case dossiers
Acquisition breakdowns, engineer reviews & open-source metrics- Post excerpt:
- I just launched a new free SQL practice platform today called DataLemur! I'm the author of Ace the Data Science Interview, and a lot of our readers wanted to practice the SQL questions from the book, so we decided to make DataLemur free and open! Even if you aren't job hunting, these tricky SQL questions are pretty fun to practice on.
Traffic sources
Traffic breakdown
Channels
- Direct52%
- Organic Search23%
- Referrals11%
- Social8%
- Other6%
Countries
- India31%
- United States26%
- Nigeria4%
- United Kingdom3%
- Indonesia3%
Search
Domain authority —Domain registered 2021-06-10
| Keyword | Monthly volume |
|---|---|
| datalemur | 18.8K |
| sql cheat sheet | 14K |
| data lemur | 9,690 |
| sql game | 5,610 |
| data lemur sql | 1,230 |
Traffic data: Vaneform
Pricing
Trial: None · 3 paid tiers ($15–$300) · Observed 2026-11-03 · Pricing page
Entry price $15/mo, Higher than 53% of peers; “Interview Preparation” median is $13.125/mo.View pricing benchmark
Pages & changes
Key pages
Weekly snapshots- Homedatalemur.com/
- Pricingdatalemur.com/pricing Snapshot 2026-11-03
Official blog & changelog
Recent articles & product updates5 SQL Interview Patterns You Need To Know (2023 Update)
5 SQL Interview Patterns You Need To Know (2025 Update) Solve enough SQL interview questions, and you’ll start to see the same patterns come up over-and-over again. As the author of Ace the Data Science Interview, and founder of SQL intervi
Ultimate SQL Interview Guide For Data Scientists & Data Analysts
Google the term "SQL Interview Questions," and you'll find the top search results are bullshit! Spammy blogs claim the top questions asked are *"What is SQL?"* and *"What is a Database?"* which is ludicrous! In this 6,000-word SQL interview
Amazon SQL Interview Questions: 6 Real SQL Questions From Amazon Data Science & Analytics Interviews
6 REAL Amazon SQL Interview Questions (Updated 2025) The Amazon interview process is notoriously challenging, featuring multiple SQL rounds for most Business Analyst, Data Analyst, Data Science, Data Engineering, and Business Intelligence E
TikTok Data Scientist Interview Guide (22 Questions Asked in 2025)
Welcome to our guide for aspiring TikTok Data Scientists! Let me spill the beans – having navigated the intricate data landscapes at FAANG and co-authored a book with my partner-in-crime, a seasoned data aficionado from the tech scene, I ca
Design
Minimal Monochrome (Light canvas, dense density) featuring full-bleed canvas / video / 3d layout and pure typography & geometry visuals.
First-screen preview · click to zoom
First-screen pitch & conversion flow
“Ace the SQL & Data Science Interview”
Full-Bleed Canvas / Video / 3D hero structure paired with start free / sign up CTA and no explicit trust bar.
Conversion path: Full-Bleed Canvas / Video / 3D + Pure Typography & Geometry → Start Free / Sign Up
- Outcome & Speed Promise
Palette · click to copy
- Typography
- 6.0
- Color & Contrast
- 6.0
- Layout & Spacing
- 6.0
- Craft & Polish
- 5.0
- Distinctiveness
- 4.0
Structure
- Fonts
- Lato
- Hero layout
- Full-Bleed Canvas / Video / 3D
- Primary visual
- Pure Typography & Geometry
- Conversion CTA
- Start Free / Sign Up
- Social proof
- No Explicit Trust Bar
- Navigation
- Full-Width Top Bar
- Theme & density
- Light · Dense
- Corners & depth
- Small Radius · Hairline borders
Preview full AI design brief (includes :root CSS variables & layout rules)Style tokens only; never copy brand names, logos, copy, or images
# Design Brief: Minimal Monochrome
Monochrome palette with a single accent color, hairline dividers, and generous whitespace.
## Design Tokens
```css
:root {
--background: #fcfcfc;
--surface: #ffffff;
--foreground: #20242c;
--muted-foreground: #686868;
--accent: #ef1026;
--radius: 4px;
--font-heading: "Lato", ui-sans-serif, system-ui, sans-serif;
--font-body: "Lato", ui-sans-serif, system-ui, sans-serif;
}
```
Color area ratio: Background #FCFCFC (~43%) · Surface #FFFFFF (~49%) · Text #20242C (~5%) · Muted Text #686868 (~2%) · Accent #EF1026 (~1%). Background and surface dominate the canvas; reserve the accent color for primary buttons and active states.
## Layout & Conversion Structure
- Hero layout: Full-Bleed Canvas / Video / 3D
- Navigation: Full-Width Top Bar
- Theme & density: Light · Dense
- Border radius & elevation: Small Radius; no drop shadows—separate layers with hairline borders and whitespace
- Primary visual medium: Pure Typography & Geometry
- Conversion CTA: Start Free / Sign Up
- Headline hook: Outcome & Speed Promise
- Spatial layout notes: Full-Bleed Canvas / Video / 3D hero structure paired with start free / sign up CTA and no explicit trust bar.
- Visual summary: Minimal Monochrome (Light canvas, dense density) featuring full-bleed canvas / video / 3d layout and pure typography & geometry visuals.
## Avoid
- Multi-stop neon gradients
- Heavy drop shadows
- More than one competing accent color
Implement the UI following the design tokens and layout specifications above: use only these color variables, and reserve the accent color strictly for primary actions and active states. Adopt only this visual style—never copy any reference product’s brand name, logo, copy, or imagery.
Questions & evidence
- How much does DataLemur cost?
- 1:1 Coaching + Signed Book + Lifetime Access: $300/once; Yearly: $60/yr (billed annually) (annual billing available); Monthly: $15/mo. Observed 2026-11-03. Check the source for current billing terms, usage limits and taxes.Source
- How much website traffic does DataLemur get?
- Vaneform estimates 523.3K website visits in 2026-09. Visits can include repeat visits; this estimate measures web traffic separately from paying customers or revenue.Source
- What is DataLemur and what platforms does it support?
- DataLemur is catalogued under Interview Preparation: Ace the SQL & Data Science Interview. Supported platforms: Web.
- What is DataLemur's publicly disclosed revenue?
- Indie Hackers records a founder-reported figure of $1,500 /mo stated on 2026-09-29.Source
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