
Mentimeter
Poll Everywhere
Kahoot!
AhaSlides
Glisser
Wooclap
Meeting Pulse
Slido is the ultimate Q&A and polling platform for live and virtual meetings and events. It offers interactive Q&A, live polls and insights about your audience.

LeetCode
Codechef
AlgoExpert.io
Project Euler
Coderbyte
Interview Cake
interviewing.io
Programming competitions and contests, programming community.
Which is more popular?
Based on our record, CodeForces seems to be a lot more popular than Sli.do. While we know about 82 links to CodeForces, we've tracked only 1 mention of Sli.do.
Website, pricing, platforms and company facts side by side.
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| Website | sli.do | codeforces.com |
| Pricing | — | |
| Platforms | — | |
| Company | 2012 | — |
| Listed in |
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
Sli.do is recommended for event organizers, educators, corporate trainers, webinar hosts, and conference managers. It is ideal for those looking to increase engagement in hybrid or virtual settings and for anyone seeking to make meetings and events more interactive and participant-focused.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
What is Slido
More videos
How to Start Competitive Programming on Codeforces? Virtual Contest? Div1? Div2? Div3? Rating Logic
More videos
How often each product is chosen within a category, 0–100% relative to the other.


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


The plans are not the same. Slido Professional has moderation, branding and multiple rooms, among other things, and Mentimeter’s conference pack has Excel export and editing together with your team. klapp has no...
Yet another highly rated tool, Slido helps you build interactive polls, quizzes or surveys. The tool is scalable and can cater their services to both individuals, and businesses. The participants don’t need to...
Slido shares many features with the other tools on this list. But it also lets your audience prioritize questions for Q&A sessions by upvoting/downvoting them – a concept that Reddit users will be familiar with. Also,...
Codeforces is a competitive programming platform that hosts coding contests and provides a platform for programmers to showcase their skills. It offers a wide range of programming challenges and problem-solving...
CodeForces is a collaborative platform where coders can participate in “rounds” where a time limit is set and points are distributed to the participants. CodeForces also has contests, problem sets as well as groups...
Recommendations tracked on public social media and blogs since March 2021.


Does anyone know of a open source self-hosted alternative to sli.do? Source: about 5 years ago
Your preparation should not be random. Platforms like LeetCode, Codeforces, and GeeksforGeeks are tools—but what matters is how you use them. - Source: dev.to / 6 months ago
Most people who do competitive programming have moved to: . - Source: Hacker News / 10 months ago
At first, the problems on platforms like Codeforces felt overwhelming. But after a few rounds, I realized something important:. - Source: dev.to / about 1 year ago
When comparing Sli.do and CodeForces, you can also consider the following products.

a web-based polling tool for workshops, conferences & events
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Practice and level up your development skills and prepare for technical interviews.
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Audience response system that uses mobile phones, twitter, and the web. Responses are displayed in real-time on gorgeous charts in PowerPoint, Keynote, or web browser.
Compare Poll Everywhere to Sli.do or CodeForces:

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 world’s largest competitive programming platform.
Compare Codechef to Sli.do or CodeForces:

Kahoot! makes it easy to create, play and share fun learning games in minutes—for any subject, in any language, on any device.
Compare Kahoot! to Sli.do or CodeForces:

A better way to prep for tech interviews
Compare AlgoExpert.io to Sli.do or CodeForces: