Topcoder
Codechef
HackerRank
LeetCode
AlgoExpert.io
Codewars
Coderbyte
Interview Cake
Respondent
User Interviews
UserTesting.com
Qualaroo
Netigate
Poll Everywhere
ARCS
Zappi
Topcoder RespondentBased on our record, Respondent should be more popular than Topcoder. It has been mentiond 23 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.
TopCoder: Features algorithm and development competitions. - Source: dev.to / about 2 years ago
Leetcode.com for problem solving practice. Do basics first before jumping into this one. Similar thing you can do at topcoder.com for trying to code with a timer. Great for problem solving practice. Source: over 3 years ago
I know topcoder.com does competitive programming for $$, I haven't done it myself though so I'm not entirely sure how it works. Source: over 3 years ago
One thing I noticed is topcoder.com is in "Advanced" and I'm not sure but, how is Top Coder any more advanced than others? Source: about 4 years ago
Usually, I go to hackerrank.com or topcoder.com to choose the easiest challenge and I do it. In that way, you can compare your solution with other ones and get better. Source: over 4 years ago
Respondent.io is great as well. Lots and lots of studies every day posted, these can pay very well depending on your specialty. Source: over 2 years ago
Hi! No, this is a legitimate project. You can visit our website respondent.io to know more about the company. Thank you! Source: about 3 years ago
If you have a bit more budget, you can also recruit participants from online panels (like userinterviews.com or respondent.io). For an incentive, you can screen the right people to participate in your playtest. Keep in mind you will need to do some vetting and make sure you're not getting "professional" participants. Source: over 3 years ago
If you're having difficulty recruiting yourself, I've used respondent.io in the past. Keep in mind recruiting hard to access types of users is often expensive and/or time consuming. Source: over 3 years ago
Figure out how you can make more income. Maybe you create an account on upwork or fiverrr (platform for freelancers) and help a company out with social media, or reviewing resumes. Maybe you try driving for doordash or ubereats. Maybe you sign up for respondent.io and get paid to do research interviews (we hire people from here all the time). I promise making a little bit of extra cash goes a long way to feeling... Source: over 3 years ago
Codechef - CodeChef is a not-for-profit educational initiative by Directi, an Indian software company. It is a global programming community that fosters learning and friendly competition, built on top of the worldโs largest competitive programming platform.
User Interviews - User Interviews is a tool to recruit participants for product tests and market research.
HackerRank - HackerRank is a platform that allows companies to conduct interviews remotely to hire developers and for technical assessment purposes.
UserTesting.com - Usability testing has never been easier. Get videos of real people speaking their thoughts as they use websites, mobile apps, prototypes and more!
LeetCode - Practice and level up your development skills and prepare for technical interviews.
Qualaroo - Qualaroo makes it easy to survey specific groups of website visitors to gain qualitative information.