
Delivers structured data science and coding courses with interactive playgrounds, but focuses heavily on data analytics rather than general software engineering.

Coddy records 7,478,457 monthly visits with +17.8% month-over-month growth and Freemium pricing. Mockin records 1,859 monthly visits with -58.7% growth and Free Trial, Paid pricing.
AI interview practice and portfolio feedback built for UX/UI and product designers
| Dimension / Metric | ||
|---|---|---|
| Official Domain | coddy.tech | mockin.work |
| Pricing Model | Freemium | Free Trial, Paid |
| Monthly Visits | 7.48M (7,478,457) | 1.86K (1,859) |
| MoM Traffic Delta | +1.13M (+17.8%) |
| -2.65K (-58.7%) |
| Primary Market & Share | 🇺🇸 United States (15.4%) | 🇺🇸 United States (100%) |
|---|
| Direct Visits / mo | 3.13M | 731 |
|---|
| User Rating | 4.3 | 4.1 |
|---|
| Supported Platforms | Website | Website |
|---|
Learn to code free with hands-on lessons and instant playgrounds
Short, practice-first coding lessons that run directly in your browser, so you can start learning without installing a compiler or development environment.
Dedicated playgrounds for Python, JavaScript, C, C++, Java, SQL, React, Go, Swift and many other languages let you test snippets and experiment immediately after each lesson.
Structured curricula such as Software Engineer, Frontend, Full Stack, Backend, Data Analyst, Data Scientist, DevOps and game development bundle the skills employers actually ask for.
Streak-style daily coding challenges and progress tracking help learners build a consistent habit and stay motivated between longer courses.
AI interview practice and portfolio feedback built for UX/UI and product designers
Choose one question or a full interview, answer out loud, and get scored feedback on STAR structure from a simulator that reacts to what you actually say instead of reading a fixed script.
Questions organised around the themes that matter in design hiring: collaboration, leadership, product thinking, motivation, experience and design thinking.
Get a structured report on what is holding your portfolio (up to three case studies) and resume back, including guidance on passing ATS and recruiter filters.
See how your profile reads to recruiters and what to change to improve visibility before you start applying.

Delivers structured data science and coding courses with interactive playgrounds, but focuses heavily on data analytics rather than general software engineering.


SpecialistTeaches computer science and logic through visual interactive puzzles and an AI tutor, but lacks traditional text-editor coding playgrounds.

SpecialistFocuses on hands-on browser-based Linux and DevOps labs with AI guidance, rather than general multi-language programming fundamentals.
SpecialistInstant AI feedback on your resume and LinkedIn profile
SpecialistAI-powered resume scoring, skill insights and interview feedback for data-driven career preparation

SpecialistAI interview copilot with real-time answers and automatic debriefs
End-to-end career services with AI tools to land your next role

AI career copilot for resumes, LinkedIn, and the whole job hunt

SpecialistAn AI career platform for resumes, cover letters, LinkedIn and interview prep

SpecialistKhan Academy's AI tutor and teaching assistant for guided, Socratic learning
SpecialistYour personal AI tutor — generate a course on anything in seconds
SpecialistPractice job interviews with AI-generated questions and instant feedback
SpecialistFocuses on hands-on browser-based Linux and DevOps labs with AI guidance, rather than general multi-language programming fundamentals.
SpecialistInstant AI feedback on your resume and LinkedIn profile
SpecialistAI-powered resume scoring, skill insights and interview feedback for data-driven career preparation
SpecialistAI interview copilot with real-time answers and automatic debriefs
End-to-end career services with AI tools to land your next role
AI career copilot for resumes, LinkedIn, and the whole job hunt
SpecialistAn AI career platform for resumes, cover letters, LinkedIn and interview prep
SpecialistKhan Academy's AI tutor and teaching assistant for guided, Socratic learning
SpecialistYour personal AI tutor — generate a course on anything in seconds
SpecialistPractice job interviews with AI-generated questions and instant feedback