AtCoder vs Yandex Contest

AtCoder8.8Visit Yandex Contest8.5Visit

Higher score AtCoder #5 in Coding Challenge Platforms 8.8/10 Free plan Free plan✓ 1 of 3 features Visit AtCoder

vs

Yandex Contest #8 in Coding Challenge Platforms 8.5/10 Free plan Free plan✓ 2 of 3 features Visit Yandex Contest

• AtCoder fits best

  Algorithm and optimization contests

• Yandex Contest fits best

  Large-scale contest creation

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Side by side

Feature	AtCoder 8.8/10 Visit ↗	Yandex Contest 8.5/10 Visit ↗
At a glance
Editor score	8.8	8.5
Ranking	#5 in Coding Challenge Platforms	#8 in Coding Challenge Platforms
Best for	Algorithm and optimization contests	Large-scale contest creation
Pricing model	Free	Free plan + paid
Starting price	Free plan	Free plan
Free plan	✓	✓
Free trial	—	—
Deployment	Cloud	Cloud
Platforms	Web	Web
Support	Tickets, Docs	Tickets, Docs
Built for	Solo, Small business, Mid-market, Enterprise	Small business, Mid-market, Enterprise
Features AtCoder 1/3 · Yandex Contest 2/3
Solution explanations	✓ (best)	Not checked yet
Custom challenges	Not checked yet	✓ (best)
Company assessments	Not checked yet	✓ (best)
Specs
Primary use	Contests	Contests
Languages supported	C, C++, C#, Java, Python, Rust, Ruby, Go, Kotlin, Swift, JavaScript, TypeScript, PHP, Perl, Lua, Scala, Haskell, OCaml, Nim, Pascal, R, SQL, Prolog, PowerShell, Bash, Fortran, COBOL, Julia, Dart, Elixir, Erlang, F#, D, Crystal, Clojure, Common Lisp, Scheme, Visual Basic, Lean, LLVM IR, Octave, SageMath, Mercury, Pony, Brainfuck, APL, AWK, BASIC, Assembly, Befunge93, Piet	Bash, C, C#, C++, Dart, Delphi, D, Free Basic, Free Pascal, Go, Haskell, Java, JavaScript, Kotlin, Kumir, Lua, OCaml, PascalABC.NET, Perl, PHP, Python, R, Ruby, Rust, Scala, Swift, TypeScript
Problem library size	5000 problems	80000 problems (best)
Our review
Pros	Free timed algorithm and heuristic contests More than 5,000 archived problems with official editorials Supports many programming languages and rating systems	Free use supports contests with up to 10,000 participants. 80,000 archived problems support ongoing programming practice. Custom formats, plagiarism comparison, APIs, and 20+ languages broaden contest workflows.
Cons	Primarily focused on contests rather than broader coding workflows Web-only access limits platform flexibility Recruitment and assessment services are separate products	Its emphasis is contest breadth rather than detailed explanations. The stated platform focus is web and API access, not mobile workflows. Many contest modes and settings may require deliberate organizer planning.
Our verdict	AtCoder is a browser-based competitive programming platform for people who want structured algorithm and optimization contests. Operated by AtCoder Inc., it hosts beginner, regular, grand and heuristic formats, with timed submissions… Read the review →	Yandex Contest is an online platform for competitive programming, automated coding evaluation, practice, lessons, exams, certification tests, and hiring-related assessments. It is aimed at schools, universities, competition organizers, and… Read the review →

Strengths and trade-offs

• AtCoder — where it wins

  • Free timed algorithm and heuristic contests
  • More than 5,000 archived problems with official editorials
  • Supports many programming languages and rating systems

  Where it doesn't

  • Primarily focused on contests rather than broader coding workflows
  • Web-only access limits platform flexibility
  • Recruitment and assessment services are separate products

• Yandex Contest — where it wins

  • Free use supports contests with up to 10,000 participants.
  • 80,000 archived problems support ongoing programming practice.
  • Custom formats, plagiarism comparison, APIs, and 20+ languages broaden contest workflows.

  Where it doesn't

  • Its emphasis is contest breadth rather than detailed explanations.
  • The stated platform focus is web and API access, not mobile workflows.
  • Many contest modes and settings may require deliberate organizer planning.

• AtCoder8.8/10 · Free plan

  A free, contest-focused platform with deep archives, ratings, editorials, and broad language support.

  Visit AtCoderFull verdict →
• Yandex Contest8.5/10 · Free plan

  A broad contest platform with automated checking, custom challenges, and a large practice archive.

  Visit Yandex ContestFull verdict →