
Sawyer
Swiftlier
CourseStorm
Arlo
Enrollsy
Tuio.org
WPAmelia
ClassDuo is class registration software for in-person programs like camps, workshops, and community classes. It lets you create schedules, collect payments, manage waitlists, track attendance, send reminders, and handle waivers—all in one place.

Cold Turkey
Freedom.to
FocusMe
Focus App
LeechBlock
Forest App
Stay Focused
V2 updates! - Custom time interval for distraction free mode - Ability to turn off ' always on' mode - Improved UI -- Self Control -- A simple app to keep you focused online by blocking sites that you spend way too much time on.
Which is more popular?
Based on our record, SelfControl seems to be more popular. It has been mentioned 79 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | classduo.com | selfcontrolapp.com |
| Pricing | ||
| Company | Startup from the United States · 1 - 9 employees · 2024 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


ClassDuo is a modern class registration platform designed for organizations that offer in-person classes, workshops, camps, or community programs. It streamlines the entire registration process, making it easy for staff to create class schedules, publish registration pages, collect payments, and...
No description of SelfControl yet.
What each product offers, as listed by its team.


No features have been listed yet.
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
SelfControl is ideal for students who need to concentrate on studying, remote workers who want to avoid procrastination, freelancers who require discipline in managing their time, and anyone who needs a simple solution to reduce digital distractions during focused work periods.
Walkthroughs and reviews on video.
No ClassDuo videos yet. You could help us improve this page by suggesting one.
How to block websites that distract you ? Selfcontrol [Mac App review and tutorial]
More videos
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using ClassDuo and SelfControl. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Tracking ClassDuo since Jul 2025.
A combination of https://selfcontrolapp.com/ and Hammerspoon automation and you can lock yourself out of pretty much everything. - Source: Hacker News / 7 months ago
Happy to see it still exists, and free https://selfcontrolapp.com/. - Source: Hacker News / 9 months ago
I have found that a useful method for getting distractions off my work laptop has been https://selfcontrolapp.com/ (if you're on mac). - Source: Hacker News / about 1 year ago
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Swiftlier, the all-in-one platform for educational businesses. Streamline complexity. Maximise potential. Swiftlier cuts through admin with automation, giving you time to sell, lead and educate
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Freedom is a productivity hack that lets you block apps, websites or the entire Internet on iPhones, iPads, Windows and Mac computers.
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Impossibly simple course enrollment software.
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The website blocker you can't cheat, on Windows, Mac, Linux, Android and iPhone.
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