
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. Prep Edu records 1,414,975 monthly visits with -19.8% growth and Paid pricing.
Study smarter for IELTS, TOEIC and HSK with AI speaking and writing rooms
| Dimension / Metric | ||
|---|---|---|
| Official Domain | coddy.tech | prepedu.com |
| Pricing Model | Freemium | Paid |
| Monthly Visits | 7.48M (7,478,457) | 1.41M (1,414,975) |
| MoM Traffic Delta | +1.13M (+17.8%) |
| -349.68K (-19.8%) |
| Primary Market & Share | 🇺🇸 United States (15.4%) | 🇻🇳 Vietnam (78%) |
|---|
| Direct Visits / mo | 3.13M | 479.07K |
|---|
| 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.
Study smarter for IELTS, TOEIC and HSK with AI speaking and writing rooms
Rehearse exam-style speaking tasks with AI scoring and multi-layer feedback covering grammar, pronunciation, fluency, vocabulary and how well your ideas are organised.
Submit written answers and receive automated scoring with suggestions on structure, vocabulary range and accuracy to raise your band score.
A companion that answers questions, walks through difficult tasks and keeps learners motivated between lessons.
Structured IELTS, TOEIC and HSK programmes, a PrepTalk English speaking course, entry tests and mock exams that mirror the real format.

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.

Focuses heavily on PTE and IELTS exam practice with robust AI scoring, similar to Prep Edu's test rooms.
SpecialistFocuses on hands-on browser-based Linux and DevOps labs with AI guidance, rather than general multi-language programming fundamentals.
SpecialistAI English speaking coach with instant pronunciation feedback

Provides online exam prep and instant AI scoring for PTE and IELTS, but with a simpler course structure.

SpecialistLearn a new language by talking to lifelike AI tutors
Delivers automated AI scoring for major English proficiency exams, though less focused on structured video lessons than Prep.

SpecialistSpeak a new language from day one with human-like AI and expert human tutors
Offers excellent AI speaking coaching for IELTS, but lacks the comprehensive written course library found in Prep.

SpecialistKhan Academy's AI tutor and teaching assistant for guided, Socratic learning
Specializes specifically in Duolingo English Test preparation with adaptive mock exams, whereas Prep covers multiple exams.
Focuses heavily on PTE and IELTS exam practice with robust AI scoring, similar to Prep Edu's test rooms.
SpecialistFocuses on hands-on browser-based Linux and DevOps labs with AI guidance, rather than general multi-language programming fundamentals.
Provides online exam prep and instant AI scoring for PTE and IELTS, but with a simpler course structure.
SpecialistLearn a new language by talking to lifelike AI tutors
Delivers automated AI scoring for major English proficiency exams, though less focused on structured video lessons than Prep.
SpecialistSpeak a new language from day one with human-like AI and expert human tutors
Offers excellent AI speaking coaching for IELTS, but lacks the comprehensive written course library found in Prep.
SpecialistKhan Academy's AI tutor and teaching assistant for guided, Socratic learning
Specializes specifically in Duolingo English Test preparation with adaptive mock exams, whereas Prep covers multiple exams.