
LeetCode
Codility
CodeSignal
Codewars
iMocha
HackerEarth
TestGorilla
HackerRank is a platform that allows companies to conduct interviews remotely to hire developers and for technical assessment purposes.

Codewars
Exercism
LeetCode
CodinGame
Coursera
Udemy
LinkedIn Learning
15 short games for QA engineers. Spot the bug in real code, triage a bug queue, catch an AI making things up. Your first round takes a minute.

Which is more popular?
Based on our record, HackerRank seems to be more popular. It has been mentioned 67 times since March 2021.
Website, pricing, platforms and company facts side by side.
|
|
|
|
|---|---|---|
| Website | hackerrank.com | qarcade.io |
| Pricing | — | |
| Platforms | — | |
| Company | — | Startup from Bosnia And Herzegovina · 1 - 9 employees · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of HackerRank yet.
QArcade is a set of short games for practising software testing. Each one trains a real skill testers use at work: spotting bugs in code, triaging defects by severity and priority, writing bug reports, planning tests by risk, diagnosing flaky tests, writing CSS selectors, testing APIs, finding...
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
HackerRank is recommended for students, individual learners, and job seekers looking to improve their coding skills, as well as for companies seeking an efficient way to evaluate candidates' technical abilities during the hiring process.
No analysis of QArcade yet.
Walkthroughs and reviews on video.
Is HackerRank A Good Idea?
More videos
No QArcade videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing HackerRank and QArcade.
QArcade's answer:
Most testing education is courses: you watch someone else find bugs. QArcade is practice. Each of its 15 short games trains one real testing skill by having you do it: spot the bug in a code snippet, triage a bug queue, review a bug report, plan a release by risk, diagnose a flaky test from its run log, write a CSS selector, test an API, find accessibility barriers, and catch an AI answer making things up. Every answer comes with an explanation, and a skill map shows where you're strong and what to practise next.
QArcade's answer:
Coding practice sites like Codewars and LeetCode train programming, not testing judgement. Course platforms like Udemy teach by video, which is easy to follow but hard to apply. QArcade sits in between: hands-on rounds that take a few minutes, on the skills testers are actually hired for, including newer ones like AI and RAG testing that few courses cover yet. You can play your first round without an account, and the free plan lets you play every day.
QArcade's answer:
Software testers and QA engineers who want to sharpen their skills, manual testers moving into automation, people preparing for QA interviews, and developers who want to get better at testing their own code.
QArcade's answer:
I write a blog about test automation, and the question I kept running into was how testers actually get better. Most of the options are courses: you watch someone else find bugs, nod along, and then freeze when it's your turn. The skills that make a good tester, spotting what's wrong, judging how bad it is, deciding what's worth testing at all, only come from doing it, and there was nowhere to just practice.
So in June 2026 I started building QArcade: short games where each round is a real testing task. You read code and find the planted bug, triage a queue of reports, review a teammate's bug report, plan a release in the hours you have, work out why a test flakes from its run log, and catch an AI answer that isn't backed by its source. Every answer comes with an explanation, because practice without feedback just repeats mistakes.
The theme came naturally: we hunt bugs, so players climb 50 insect ranks, and the games are named after the things naturalists do in the field. Two rules shaped everything else. Nothing that gives you an advantage can ever be bought, only earned. And the games have to be worth playing for what they teach, not just for the points.
I built it on my own, from the game content to the payments, and launched it on 31 October 2026, first to my blog's readers.
QArcade's answer:
TypeScript throughout. React with Vite and Tailwind CSS on the front end; NestJS with Prisma, PostgreSQL and Redis on the back end; BullMQ and isolated-vm for running player-written tests safely in the Mutation Arena; Stryker for mutation testing; Playwright and Vitest for its own test suite. Hosted on Hetzner with Coolify, payments by Paddle, error monitoring with Sentry.
QArcade's answer:
Individual testers and QA engineers (QArcade launched on 31 October 2026 and has no company customers yet)
Share your experience with using HackerRank and QArcade. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


What are LeetCode and LeetCode alternatives good for?LeetCode💡Interested in leveling up your career? Apply to the Formation Fellowship...
HackerRank’s challenges cover a wide range of topics and difficulty levels, allowing developers to enhance their problem-solving skills and learn new algorithms and data structures. The competitive nature of...
HackerRank offers a wide array of challenges across various domains such as algorithms, mathematics, SQL, and functional programming. Its interface is user-friendly, and the platform provides detailed feedback on...
We have no reviews of QArcade yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


This way, you transfer what you already know (problem-solving) but only change the syntax. Platforms like Hackerrank are also great to solve the same problem in different languages and learn from other people’s solutions. - Source: dev.to / about 1 year ago
Firstly, solve some common data structure problems with it. Implement some data structures like arrays, linked lists, stacks, queues, etc. You can check common problems on LeetCode, Hackerank or some other resources. - Source: dev.to / over 2 years ago
I don't have a consecutive internet connection and I can't keep up learning process so I started practicing in hackerrank.com I have started some challenges in python and c++ there. Thus I have no internet connection so I cannot practice... Source: almost 3 years ago
Tracking QArcade since Oct 2026.
When comparing HackerRank and QArcade, you can also consider the following products.

Practice and level up your development skills and prepare for technical interviews.
Compare LeetCode to HackerRank or QArcade:


Codility provides a SaaS platform with advanced validation, security and protection features to evaluate the skills of software engineers.
Compare Codility to HackerRank or QArcade:

Download and solve practice problems in over 30 different languages.
Compare Exercism to HackerRank or QArcade:

CodeSignal is the leading assessment platform for technical hiring.
Compare CodeSignal to HackerRank or QArcade:

CodinGame provides users with a fun and effective way to learn coding that eschews the rigid structure of traditional teaching methods.
Compare CodinGame to HackerRank or QArcade: