StrataScratch
LeetCode
DataLemur
Datacamp
HackerRank
Codecademy
QueryCase
DataDriven.io
JackHamr
GummySearch
Brand24
F5Bot
Redreach.ai
Bazzly
Cursor
KWatch.io
JackHamr is the AI coding agent that ships software end-to-end. Instead of a single assistant that tries to do everything, it runs a team of specialist agents โ one writes the spec, another plans the implementation, others build, test, review, and ship the code. Each agent has its own role, tools, and personality.
Agents run on hosted cloud dev environments with VS Code, Docker, SSH access, and WireGuard-encrypted networking. Close your laptop and they keep working. Talk to them with push-to-talk voice chat or type naturally. GitHub is built in โ one-click clone, automatic branch-per-task, real-time commit sync, and PR creation.
Bring your own LLM keys (OpenAI, Anthropic, Google, or self-hosted) or use ours at cost โ swap models mid-pipeline to use the best model for each task. Build custom orchestration pipelines and agent skills. Share agents across your organization.
Pay-as-you-go with fully itemized billing โ infrastructure at cost, LLM tokens with zero markup. $10 free credit to start, no card required.
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Based on our record, StrataScratch seems to be more popular. It has been mentiond 4 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
StrataScratch is focused on providing data analysis/science resources needed to land a job and resources for the first few years of your career. It has 600+ coding questions from real interviews where you can use SQL, python, or R. It has 500+ questions about ML theory, product sense, probability, statistics, also from real interviews. There are data projects that come from take home assignments companies give... Source: about 3 years ago
I learned off of Mode Analytics SQL tutorial. It's free and I use it as a reference when I forget syntax. From there, my learning style is to grind on practical questions that I would get as a data analyst. So I would recommend stratascratch because all their questions are from real data science interviews which not only test for syntax but edge cases and business logic. Other platforms basically only test for... Source: about 3 years ago
There was a comment here about using Leetcode, Hackerrank, SQL fiddle, etc to keep learning SQL. However, if you're aim is to go into data analytics you need to go beyond learning syntax and understand edge cases and business context. You should grind on some data analytics/data science focused platforms like stratascratch and interviewquery. They have hundreds of questions with many free ones for your to practice. Source: about 3 years ago
If you want some practice interview questions, check out DataLemur and/or StrataScratch. They helped me immensely in preparing for technical interviews. Source: about 3 years ago
LeetCode - Practice and level up your development skills and prepare for technical interviews.
GummySearch - Audience research for Reddit
DataLemur - Practice SQL Interview Questions & Data Science Interview Questions asked by FAANG.
Brand24 - Brand24 is an AI-powered media monitoring tool that analyzes mentions and presents actionable insights.This tool is designed to keep track of online conversations about your brand, products, and competitors.
Datacamp - DataCamp is a massive open online course (MooC) platform that helps everyone from novices to experts hone their skills with data science.
F5Bot - F5Bot will send you an email whenever your brand, product, or keyword is mentioned online.