
HackerRank
CodeSignal
iMocha
HackerEarth
TestGorilla
DevSkiller
mettl
Codility provides a SaaS platform with advanced validation, security and protection features to evaluate the skills of software engineers.
f.lux
DisplayBuddy
Dimmer
Monitorian
PangoBright
Lunar.fyi
MonitorControl
Easily manage the brightness of your monitors in Windows from the system tray.

Which is more popular?
Based on our record, Twinkle Tray seems to be a lot more popular than Codility. While we know about 22 links to Twinkle Tray, we've tracked only 2 mentions of Codility.
Website, pricing, platforms and company facts side by side.
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| Website | codility.com | twinkletray.com |
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In their own words, as submitted to SaaSHub.

The Codility platform includes: CodeCheck - Design role-specific remote skills assessments to screen your technical candidates before moving them to the interview stage. CodeLive - Host technical remote or onsite interviews via our shared editor using a range of templates and whiteboards....
No description of Twinkle Tray yet.
What each product offers, as listed by its team.

Possible disadvantages
Possible disadvantages
Walkthroughs and reviews on video.
An Introduction to Codility: The Tech Hiring Platform for Engineering Teams
No Twinkle Tray 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.

Share your experience with using Codility and Twinkle Tray. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.

Codility is a platform that helps companies assess the coding skills of developers. They offer a range of online coding tests and assessments that enable employers to evaluate candidates' technical abilities.
We have no reviews of Twinkle Tray yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.

- Technical skills: have they got the walk to match the talk? Programming languages on a resume mean little if candidates are unable to demonstrate their hard coding skills. You can test these skills with technical skill tests, such as... - Source: dev.to / over 2 years ago
Codility : Verify and improve coding skills. - Source: dev.to / over 5 years ago
Firstly, you need to download the application from the official website. https://twinkletray.com/. - Source: dev.to / almost 2 years ago
Also, there are 3rd party apps that do the deed, an increasingly popular option is TwinkleTray but you can find more in a search engine. Source: about 3 years ago
I don't think you can, since it automatically detects whether or not the screen is connected. Https://twinkletray.com/ tho this app can shut off the screen, maybe it can be better. Source: about 3 years ago
When comparing Codility and Twinkle Tray, you can also consider the following products.

HackerRank is a platform that allows companies to conduct interviews remotely to hire developers and for technical assessment purposes.
Compare HackerRank to Codility or Twinkle Tray:

f. lux is a piece of software for Windows, Mac, Linux, iOS, and Android that provides a blue light filter over your screen. Research suggests limiting our exposure to blue light in the hours before bedtime can help us fall asleep faster.
Compare f.lux to Codility or Twinkle Tray:

CodeSignal is the leading assessment platform for technical hiring.
Compare CodeSignal to Codility or Twinkle Tray:

Control the real brightness of your monitors directly from your Mac - no need to touch the buttons on your Monitor.
Compare DisplayBuddy to Codility or Twinkle Tray:


A very small and free utility for Windows to reduce brightness on LCD/TFT screens.
Compare Dimmer to Codility or Twinkle Tray: