
Apache Spark
Spring Framework
Amazon Kinesis
Apache Kafka
Grails
Apache Struts
Eclipse RAP
Flink is a streaming dataflow engine that provides data distribution, communication, and fault tolerance for distributed computations.

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, Apache Flink seems to be more popular. It has been mentioned 47 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | flink.apache.org | 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 Apache Flink 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
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
GOTO 2019 • Introduction to Stateful Stream Processing with Apache Flink • Robert Metzger
More videos
UbiTimer Global Timer Across Slides in PowerPoint
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Apache Flink 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 Apache Flink and Ubi Timer. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Google Cloud Dataflow is a managed stream and batch processing service built on Apache Beam that offers autoscaling, event-time processing, windowing, stateful computations, and exactly-once guarantees, but it ties deployments to Google... - Source: dev.to / about 1 month ago
When IoTDB was initiated in 2011, almost all influential distributed systems and databases were built in Java or on the JVM—such as Hadoop, HBase, Spark (Scala on JVM), Cassandra, Kafka, and Flink. To integrate deeply with the big data... - Source: dev.to / 7 months ago
In the meantime, other query engine support is on the roadmap, including Apache Spark, Apache Flink, and others. - Source: dev.to / about 1 year ago
Tracking Ubi Timer since Oct 2025.
When comparing Apache Flink and Ubi Timer, you can also consider the following products.

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A simple countdown timer with an alarm for the browser.
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The Spring Framework provides a comprehensive programming and configuration model for modern Java-based enterprise applications - on any kind of deployment platform.
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Amazon Kinesis services make it easy to work with real-time streaming data in the AWS cloud.
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Apache Kafka is an open-source message broker project developed by the Apache Software Foundation written in Scala.
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An Open Source, full stack, web application framework for the JVM
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