Coddy records 7,478,457 monthly visits with +17.8% month-over-month growth and Freemium pricing. SAT Sphere records 21,754 monthly visits with +32.8% growth and Freemium pricing.
Learn to code free with hands-on lessons and instant playgrounds
Digital SAT prep with lessons, practice tests and an AI tutor
| Dimension / Metric | | |
|---|---|---|
| Official Domain | coddy.tech | satsphere.com |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 7.48M (7,478,457) | 21.75K (21,754) |
| MoM Traffic Delta | +1.13M (+17.8%) | +5.37K (+32.8%) |
| Primary Market & Share | 🇺🇸 United States (15.4%) | 🇺🇸 United States (47.8%) |
| Direct Visits / mo | 3.13M | 7.71K |
| User Rating | 4.3 | 4.4 |
| 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.
Digital SAT prep with lessons, practice tests and an AI tutor
Eight modules and 75 guided lessons covering both Reading and Writing and Math, with worked examples followed by SAT-style questions and instant explanations.
Full-length and custom practice exams in the Bluebook module format with section timers, an estimated score and a review of every answer.
Ask SAT AI for a step-by-step explanation, a hint or a similar practice problem, available with a daily trial allowance on lower plans and fully in Premium Plus.
Spaced-repetition decks covering vocabulary, grammar and math, plus a searchable dictionary of about 28,000 SAT-relevant words with definitions and example sentences.
Your personal AI tutor for every subject, from notes to exam day.
Delivers structured data science and coding courses with interactive playgrounds, but focuses heavily on data analytics rather than general software engineering.
SpecialistStudy library, AI homework help, and 24/7 tutor access in one place
SpecialistStudy library, AI homework help, and 24/7 tutor access in one place
Interactive math, coding and AI tutoring you learn by doing
All-in-one IB and MYP exam prep with an AI study partner
AI-powered A Level and GCSE courses with a top-grades-or-refund guarantee
Adaptive reading comprehension practice with instant data for every student
Adaptive reading comprehension practice with instant data for every student
SpecialistFocuses on hands-on browser-based Linux and DevOps labs with AI guidance, rather than general multi-language programming fundamentals.
SpecialistFocuses on hands-on browser-based Linux and DevOps labs with AI guidance, rather than general multi-language programming fundamentals.
Adaptive online exam prep that adapts to how you learn
Adaptive online exam prep that adapts to how you learn
AI-powered exam prep with question banks, mock tests and spaced-repetition flashcards for 10,000+ exams
AI-powered exam prep with question banks, mock tests and spaced-repetition flashcards for 10,000+ exams
SpecialistKhan Academy's AI tutor and teaching assistant for guided, Socratic learning
SpecialistKhan Academy's AI tutor and teaching assistant for guided, Socratic learning
