Software Alternatives, Accelerators & Startups

interviewing.io VS CheckIO

Compare interviewing.io VS CheckIO and see what are their differences

interviewing.io logo interviewing.io

Free, anonymous technical interview practice

CheckIO logo CheckIO

CheckIO is a web site with a mission: To teach JavaScript and Python coding skills through a game-playing interface. It is designed to teach new skills or improve existing skills through completing challenges.
  • interviewing.io Landing page
    Landing page //
    2022-11-02
  • CheckIO Landing page
    Landing page //
    2021-09-16

interviewing.io features and specs

  • Anonymity
    Interviewing.io allows candidates to remain anonymous during the interview process, which can help reduce bias and make candidates more comfortable.
  • High-quality practice
    The platform provides opportunities to practice with real engineers from top tech companies, offering high-quality feedback and experience.
  • Cost-effective
    Many features on Interviewing.io are free, including the ability to conduct practice interviews and access to recordings and feedback.
  • Feedback and metrics
    Candidates receive detailed feedback and performance metrics after each interview, helping them identify areas of improvement.
  • Networking
    The platform can provide valuable networking opportunities by connecting candidates with engineers and potential employers from top tech companies.

Possible disadvantages of interviewing.io

  • Limited industry focus
    Interviewing.io primarily focuses on tech interviews, so it may not be useful for candidates looking for practice in other industries.
  • Variable interviewer quality
    The quality of interviewers can vary, which might affect the consistency of the practice and feedback received.
  • Scheduling challenges
    Finding convenient times for interviews can sometimes be challenging, especially if both the candidate and interviewer have busy schedules.
  • Stress and performance pressure
    Despite being a practice platform, candidates might still experience stress and performance pressure, similar to real interview scenarios.
  • Limited personalization
    The feedback and practice sessions are somewhat standardized, which may not always cater to the specific needs or unique backgrounds of individual candidates.

CheckIO features and specs

  • Interactive Learning
    CheckIO provides an engaging and interactive way to learn programming concepts through solving coding challenges. This hands-on approach helps reinforce learning effectively.
  • Community Support
    The platform has a strong community where users can share solutions, get feedback, and learn from others' code. This collaborative environment can be very beneficial for learning and improving coding skills.
  • Variety of Challenges
    CheckIO offers a wide range of challenges that cater to different skill levels, allowing users to progress from basic to advanced problems. This variety keeps users engaged and continually learning.
  • Gamification
    The platform includes gamified elements such as points, badges, and leaderboards, which can increase motivation and make the learning process more enjoyable.
  • Python and JavaScript
    CheckIO supports both Python and JavaScript, making it versatile for learners who want to improve their skills in either of these popular programming languages.
  • Educational Missions
    The platform offers educational missions that are designed to teach specific programming concepts or algorithms, providing a focused learning experience.

Possible disadvantages of CheckIO

  • Limited Language Support
    CheckIO currently supports only Python and JavaScript, which may be a limitation for users looking to practice other programming languages.
  • Requires Internet Connection
    The platform is web-based, so a consistent internet connection is required to access challenges and content. This may be a drawback for users with limited or unreliable internet access.
  • Pacing and Difficulty
    Some users may find the difficulty of certain challenges to be either too high or too low, making it harder to find problems that are appropriately challenging for their skill level.
  • Limited Career Development Features
    The site focuses primarily on coding challenges and lacks extensive resources for job placement or career development compared to other platforms like HackerRank or LeetCode.
  • Less Comprehensive Tutorials
    While CheckIO provides educational missions, it may not be as comprehensive in tutorials and explanations compared to other dedicated learning platforms like Codecademy or Coursera.

interviewing.io videos

Technical Interviewing Anonymous: Aline Lerner, CEO @ Interviewing.io

CheckIO videos

Intro Video. How to get maximum from CheckiO

Category Popularity

0-100% (relative to interviewing.io and CheckIO)
Online Learning
47 47%
53% 53
Online Education
49 49%
51% 51
Hiring And Recruitment
100 100%
0% 0
Online Courses
0 0%
100% 100

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare interviewing.io and CheckIO

interviewing.io Reviews

The Best Code Interview Prep Platforms in 2020
Interviewing.io takes a very unique approach to coding interview prep. Rather than providing content and practice coding challenges, Interviewing.io has a library of actual video interviews that you can watch, and you can pay to anonymously take a mock interview with an engineering hiring manager.

CheckIO Reviews

15 Best LeetCode Alternatives 2023
CheckiO is a platform with coding games created for different levels of programmers, from beginners to advanced levels. Using fun and engaging methods, you can use coding games to solve challenges in TypeScript and Python on the platform.
8 Best LeetCode Alternatives and Similar Platforms
CheckIO is available in English and Spanish. The platform was designed by a group of engineers and now has a number of customers all over the globe who may use it to improve their programming speed and abilities by following the instructions on the screen.
4 high-quality HackerRank alternatives (plus 7 honorable mentions)
Checkio is the most whimsical HackerRank alternative on this list. It’s also focused on two languages: Python and TypeScript. On this site you’ll be thrown into a gamer’s paradise that includes robot mollusks and coding your way off an island. But once you accept the coding challenges, you go straight into a serious coding environment.

Social recommendations and mentions

Based on our record, interviewing.io should be more popular than CheckIO. It has been mentiond 99 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.

interviewing.io mentions (99)

  • How to Become a Backend Developer in 2025 ?
    Interviewing.io – Anonymous mock interview platform with real engineers from top tech companies. - Source: dev.to / 4 months ago
  • My Journey of Mastering Data Structures and Algorithms in 6 Months: Dos and Don'ts👩🏻‍💻
    Conduct Mock Interviews: Simulate interview scenarios using platforms like Pramp or Interviewing.io. This helps you manage time, pressure, and articulating your thought process. - Source: dev.to / 9 months ago
  • Rebooting (something like) early Triplebyte
    How is this different than https://interviewing.io/ ? - Source: Hacker News / 10 months ago
  • Ask HN: Any previous experience with interviewing.io dedicated coaches?
    Interviewing.io[1] lets users to practice mock interviews (coding interviews) with peers or professional interviewers. These interviews are anonymous. They also offer mentorship sessions with “dedicated coaches” from FAANG or other backgrounds. They claim 99% satisfaction rate and 82% of success (landing a job in the desired company). It sounds really vague and difficult to verify due to the anonymous aspect. Does... - Source: Hacker News / over 1 year ago
  • Guidance for cracking coding interviews
    There is also https://interviewing.io/, but that platform is a rip off. Either you need to pay an arm and a leg, or you need to trade two interviews that you do for others in exchange for a single interview that you receive. Pramp is much better in that respect. With Pramp, you interview the other job-hunter for 30 minutes and they interview you for 30 minutes. It's a much fairer exchange. Source: over 1 year ago
View more

CheckIO mentions (46)

  • I am stuck!
    Have you heard of CheckIO (https://checkio.org/)? They have a gameified "Mario world" of coding challenges that are smaller and come with more explanation, tests to guide you through edge cases and provide hints. The challenges start from total beginner and progress to more advanced. And best of all, after you solve a problem they show you what other people do. I highly recommend this for you. Also consider... Source: over 1 year ago
  • I feel like I may not be smart enough to get into the cybersecurity space
    Cyber isn't gonna be a light switch, where you can flip it and be good. Don't be too hard on yourself. Start with some hands on stuff like https://tryhackme.com or checkio.org. You could look at certs like Security+ or CySA+ for some direction. It took me years to get into cybersecurity, and I still don't feel like I know anything. Source: almost 2 years ago
  • I need some advice to learn Python.
    Much better to get your hands dirty than watching the videos. Try: https://checkio.org/. Source: almost 2 years ago
  • Where can i test my knowledge?
    When I was first learning python I like using https://checkio.org/ Checkio provides programming problems in a gamified environment. After you have solved a problem you can see how others have solved the problem. This really accelerated my learning. Source: about 2 years ago
  • Projects for beginners
    Look at checkio.org. Range of problems to solve ('missions') When you do you can see how others solved them too which ids very instructive. Source: about 2 years ago
View more

What are some alternatives?

When comparing interviewing.io and CheckIO, you can also consider the following products

AlgoExpert.io - A better way to prep for tech interviews

Codewars - Achieve code mastery through challenge.

LeetCode - Practice and level up your development skills and prepare for technical interviews.

CodinGame - CodinGame provides users with a fun and effective way to learn coding that eschews the rigid structure of traditional teaching methods.

Interview Cake - Free practice programming interview questions. Interview Cake helps you prep for interviews to land offers at companies like Google and Facebook.

CodeCombat - Learn programming with a multiplayer live coding strategy game.