FunFact1. A source for every fact
A fact only goes into FunFact if a reliable source confirms it: a science agency (NASA, NOAA), a museum (Smithsonian), an encyclopedia (Britannica), a published study or an official body. The link sits under the fact.
How we check every fact
Every FunFact fact is checked before it is published and cites a source you can open. Here is how we work, and what we refuse to publish.
2. The source says what the fact says
We reread the source to check the number, the date and the exact meaning. A fact that stretches its source is rewritten or dropped.
3. No urban legends
Famous "facts" that are false (the Great Wall seen from space, the 10% of the brain…) are not published as true. When a fact is debated, we say so.
4. A check date
Every fact shows when it was checked. Records, numbers and rankings change, so we check them again.
5. Mistakes get fixed
If you spot a mistake, write to contact@fit-coach.app with a link to the fact. We fix it in the app and on the site.
Our sources in numbers
The 900 facts published on this site cite 548 different sources. Every one has a link. The most cited:
- science.nasa.gov18
- doi.org17
- fr.wikipedia.org16
- web.archive.org14
- pubmed.ncbi.nlm.nih.gov13
- britannica.com12
- pmc.ncbi.nlm.nih.gov12
- en.wikipedia.org11
- nationalgeographic.com11
- guinnessworldrecords.com10
- swissinfo.ch10
- smithsonianmag.com10
One verified fact a day, on your phone.
FunFact sends you facts as notifications through the day and puts them on your home screen. Every fact cites its source. Free on iPhone and Android, with no account and no ads.