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

Recuva
TestDisk
Disk Drill by Cleverfiles
Glary Utilities
EaseUS Data Recovery Wizard
GetDataBack
RStudio
Jun 4, 2016 - PhotoRec is file data recovery software designed to recover lost files including video, documents and archives from hard disks, CD-ROMs, and lost pictures (thus the Photo Recovery name) from digital camera memory.

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 | cgsecurity.org |
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What each product offers, as listed by its team.


Possible disadvantages
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
PhotoRec is recommended for technically savvy individuals who need a robust data recovery solution capable of handling a wide range of file types across different storage media. It's also suited for users who are dealing with severe data loss situations where traditional file recovery tools might fail.
Walkthroughs and reviews on video.
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using HackerRank and PhotoRec. 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...
PhotoRec is a partition recovery tool specifically designed for Mac users, capable of recovering lost files such as documents, archives, and videos from various storage media including CD-ROMs, hard disks, and digital...
PhotoRec is an open-source software released under GPL v2+aimed at mobile data recovery. It can help users retrieve extremely damaged photos, audio, and video files stored on memory sticks, SD cards, MMC, Microdrive,...
PhotoRec is an open source and free SD card data recovery tool that supports recovery of all types of files. It has been tested to efficiently recover deleted files and folders from SD, HDD, SSD, USB flash drives and...
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 PhotoRec since Mar 2021.
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