
Mentimeter
Poll Everywhere
Kahoot!
AhaSlides
Glisser
Wooclap
Pigeonhole Live
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.

E.ggtimer.com
UbiTimer is a PowerPoint timer add-in that helps presenters stay on track with a clear countdown across slides. Simple and effective.

Which is more popular?
Based on our record, Sli.do seems to be more popular. It has been mentioned 1 time since March 2021.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | sli.do | ubitimer.com |
| Pricing | ||
| Platforms | — | |
| Company | 2012 | Startup from the United Kingdom · 1 - 9 employees · 2025 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Sli.do yet.
UbiTimer is a lightweight PowerPoint add-in that adds countdown, count-up, and radial timers directly to your slides. Perfect for teachers, presenters, and trainers, it helps keep lessons and meetings on schedule. Works on Windows and Mac, supports slideshow mode, and offers a free EDU version...
What each product offers, as listed by its team.


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
No Ubi Timer 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.


As answered by people managing Sli.do and Ubi Timer.
Ubi Timer's answer:
Ubi Timer brings timing directly into PowerPoint, so presenters do not need to switch to a browser, phone, or separate desktop timer. It supports countdown and stopwatch modes, works during Slide Show, and can be used per slide or across sections of a presentation, which makes it especially useful for lessons, workshops, rehearsals, and live talks.
Ubi Timer's answer:
Choose Ubi Timer if you want a timer that feels native to PowerPoint instead of bolted on. It is designed to be quick to set up, easy to style to match your slides, usable on Windows, Mac, and PowerPoint for the web, and reliable in live presentation settings without needing to leave your deck. It also offers a free version and a free EDU option for verified schools.
Ubi Timer's answer:
Ubi Timer is built for teachers, trainers, presenters, and speakers who use PowerPoint and need better control over timing. It is especially well suited for classrooms, workshops, meetings, practice sessions, and any presentation where staying on schedule matters.
Ubi Timer's answer:
Ubi Timer was created out of frustration with standalone timers and makeshift PowerPoint timer setups built from animated slides. The goal was to create a cleaner, easier, and more reliable way to manage time inside PowerPoint without disrupting the presentation experience.
Ubi Timer's answer:
Ubi Timer is built as a Microsoft PowerPoint add-in for Microsoft 365 and Office, designed to work directly inside PowerPoint across supported Windows, Mac, and web environments. I could not find a trustworthy public source naming the full internal stack, so this answer is safest for a public listing.
Ubi Timer's answer:
Teachers and schools Corporate trainers Workshop facilitators Public speakers and presenters Teams using PowerPoint for meetings and rehearsals
Share your experience with using Sli.do and Ubi Timer. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


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,...
We have no reviews of Ubi Timer yet. Be the first one to post
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: almost 5 years ago
Tracking Ubi Timer since Oct 2025.
When comparing Sli.do and Ubi Timer, you can also consider the following products.

a web-based polling tool for workshops, conferences & events
Compare Mentimeter to Sli.do or Ubi Timer:

A simple countdown timer with an alarm for the browser.
Compare E.ggtimer.com to Sli.do or Ubi Timer:

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 Ubi Timer:

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 Ubi Timer:

Add live polls, quizzes, word clouds and Q&As to make presentations interactive. See dynamic audience interactions happen in real-time.
Compare AhaSlides to Sli.do or Ubi Timer:

Glisser makes presentations interactive – it takes regular PowerPoint, Keynote or PDF slide decks and pushes them out live to audience mobile devices. Your audience can then interact with the presenter with via polls, Q&A, voting and much more.
Compare Glisser to Sli.do or Ubi Timer: