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

LazyWork
Slack Green
Move Mouse
jiggleMouse.app
Mouse Jiggler for Mac
Mouse Jiggler App
Caffeine for Mac
Natural desktop activity while you step away

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.
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| Website | hackerrank.com | lumous.app |
| Pricing | — | |
| Platforms | — | |
| Company | — | 2024 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of HackerRank yet.
Lumous keeps a Windows or Mac desktop naturally active while you step away - tested against Time Doctor and Hubstaff with recorded full-workday runs. It coordinates mouse, keyboard, clicks, scrolling, tabs, and apps, with Safe Click Zones, Silent Keys, and granular activity controls.
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.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Is HackerRank A Good Idea?
More videos
Lumous App Overview | Full Setup, Features & Desktop Demo
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing HackerRank and Lumous.
Lumous's answer:
Lumous simulates a complete working desktop, not just mouse movement. Mouse activity, keyboard input, scrolling, clicks, browser tab switching, and app switching all run together in coordinated, changing patterns that adapt between typing, reading, navigation, and quieter thinking periods throughout the session. Two features are unique to Lumous: Safe Click Zones, which restrict all automated clicks to screen areas you define, and Silent Keys, which generate keyboard activity signals without producing any visible typed characters. Every session is discreet by design - Lumous runs minimized under a neutral process name, stays out of application rotation, and never appears in tracker screenshots. Compatibility is validated through recorded public full-workday sessions, including a 10-hour 22-minute Time Doctor 2 test and an 8-hour Hubstaff test, both available on YouTube.
Lumous's answer:
Remote workers, freelancers, and contractors whose employers or clients use activity tracking software such as Hubstaff, Time Doctor, Upwork Tracker, or similar platforms. The core audience includes knowledge workers whose most productive time - reading, calls, planning, and short breaks - is invisible to trackers that only measure mouse and keyboard input. Lumous is also used by professionals who need their desktop to remain active during long tasks that require focus rather than constant input, such as reviewing documents, attending meetings, or stepping away briefly.
Lumous's answer:
Lumous was built around a straightforward observation: most activity trackers measure input rather than output. Reading, calls, planning, and taking a break can all register as inactivity, even when they represent real work. Basic mouse jigglers only change one signal, which is not enough for modern monitoring platforms that analyze mouse patterns, keyboard cadence, screenshots, app usage, and more. Lumous was designed to coordinate all of those signals together in patterns that reflect how a real working desktop actually behaves - not to fake productivity, but to prevent legitimate work and necessary breaks from being misclassified as idle time.
Lumous's answer:
Most tools in this category make unverified claims about being undetectable. Lumous publishes the proof: a recorded 10h 22m Time Doctor 2 session with zero unusual-activity reports, zero identical screenshots, and zero low-activity intervals, and a recorded 8-hour Hubstaff session with 54% average activity, 92% focus time, and zero unusual-activity instances. Both are publicly available on YouTube.
The feature set goes beyond what competitors offer. Safe Click Zones prevent automated clicks from landing outside areas you define. Silent Keys generate keyboard activity without producing visible characters. Adaptive work rhythms shift naturally between typing, reading, navigation, and quieter periods throughout a session rather than running mechanical fixed patterns.
Lumous includes every feature in one plan at $5/month or $48/year - no tiers, no locked features. Most competitors either charge significantly more or gate their most important controls behind higher plans.
Share your experience with using HackerRank and Lumous. 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 Lumous 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 Lumous since Jun 2026.
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