Fun knowledge
I like it, the knowledge dispatch is pretty fun
Free
About
Discover a new, surprising science fact daily, sourced from original publications. Get explanations tailored to your interests and view facts on your home screen, lock screen, or Apple Watch. All facts are saved in your personal library.
✓Daily science facts
✓Source citation for every fact
✓Personalized explanations
✓Home screen widget
✓Fact library
✓Apple Watch support
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What's New in Ohlo
0.6.0
August 1, 2026
• Widgets now refresh automatically every day — your daily fact updates without opening the app • Fixed source citations for facts from journals and other non-arXiv sources • Fixed the card back clipping longer explanations
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FAQ
What is Ohlo?
Ohlo delivers one surprising science fact every day, sourced from original publications. It provides explanations tailored to your interests and can be viewed via a widget on your home screen, lock screen, or Apple Watch.
Does Ohlo have ads?
No, Ohlo is ad-free. The app is completely free to use and does not contain any advertisements.
How does Ohlo explain science facts?
Ohlo explains each fact in plain language, considering your background and interests, to clarify why the fact matters to you without using jargon.
Can I access Ohlo facts offline?
While the daily fact delivery requires an internet connection, facts you have previously read and saved to your library can be accessed offline.
What devices support the Ohlo widget?
The Ohlo widget is supported on your iPhone's home screen and lock screen, as well as on the Apple Watch.
How often is Ohlo updated?
The latest version of Ohlo, 0.6.0, was released on August 1, 2026, indicating recent development activity. Updates are typically released to improve features and reliability.
Is Ohlo suitable for children?
Ohlo has an age rating of 4+, making it suitable for a wide range of users. The content is designed to be educational and accessible.
Where can I find the sources for Ohlo's facts?
Every fact presented by Ohlo links directly back to the original paper or publication it came from, allowing you to verify the information yourself.