
DokuWiki
TiddlyWiki
MediaWiki
XWiki
Fandom
Editthis
Miraheze
An open source knowledge management application that's focused on ease of use.

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, BookStack seems to be more popular. It has been mentioned 4 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | bookstackapp.com | ubitimer.com |
| Pricing | ||
| Company | — | Startup from the United Kingdom · 1 - 9 employees · 2025 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of BookStack 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.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Small to medium-sized teams, open-source enthusiasts, educational institutions, and projects that require a user-friendly documentation system with the flexibility of self-hosting.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
BookStack Review- 7 Brief Lessons in Physics
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 BookStack 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 BookStack 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.


Bookstack is a simple, self-hosted platform for organizing and storing information, focusing on creating a knowledge base. It is similar to Gitbook in its functionality but differs in how it is organized and...
Another powerful self-hosted Wiki software for Linux is BookStack. One of the most attractive features of BookStack is its cross-book sorting capability. It can sort all books based on tags such as title, author name,...
The BookStack App is not just a Wiki Engine, but it works the same. It aims for creating books by easing collaboration among writers and editors, we run it for us and some clients as a Wiki Engine, where they use...
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.


Check out https://bookstackapp.com (PHP/Laravel). - Source: Hacker News / about 1 year ago
That said, is it possible to customize the theme a bit? Specifically, how can I set the code-block background to dark-grey? Also, how can I make the horizontal line a bit taller than 1px? I saw the Customizing Visuals page on... Source: about 3 years ago
Maybe look at BookStack to see if it fits your needs. Source: over 3 years ago
Tracking Ubi Timer since Oct 2025.
When comparing BookStack and Ubi Timer, you can also consider the following products.

DokuWiki is a simple to use and highly versatile Open Source wiki software that doesn't require a database.
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A simple countdown timer with an alarm for the browser.
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MediaWiki is a free software wiki package written in PHP, originally for use on Wikipedia.
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A powerful Open Source collaborative platform enhancing collaboration and communication.
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