Daily fun facts app
FunFact sends you surprising facts as notifications through the day and puts them on your home screen with widgets. You learn without trying, and every fact cites its source so you can share it without worrying it's a myth.
No need to remember to open an app: the facts come to you, where you already look.
FunFact09:12
J. K. Rowling uses initials because her publisher feared boys wouldn’t read a book by a woman
FunFact13:40
Double your speed, and your braking distance quadruples.
FunFact19:05
In unrelated languages, the word for “mother” sounds like “mama.”
Choose how many facts you want (up to 10 a day) and between which hours. You learn something every time you glance at your phone.
In unrelated languages, the word for “mother” sounds like “mama.”
A fact on your home screen, in the visual style you pick, on iPhone and Android.
November 11
9:41
On iPhone, a lock screen widget tells you what happened on the same date in history.
NASA, the Smithsonian, Britannica, peer-reviewed studies: the source sits under each fact, with the date it was checked.
Facts come to you: in your notifications, on your home screen and on your lock screen.
Animals, space, history, the human body, psychology, sports, technology and more. Follow the ones you like.
Open the app and read. Your favorites and collections stay on your phone.
Fact of the day · World & countries
In Switzerland, altitudes are measured from a rock in Geneva's harbor: the Pierre du Niton.
Its benchmark is set at 373.6 m (1,226 ft), calculated relative to the Mediterranean sea level measured at Marseille.
Source: État de Genève
A sample of 50 checked facts per topic. The app has many more.
Animals50 facts
History50 facts
Space50 facts
Human body50 facts
Science50 facts
Verified oddities50 facts
Nature & Earth50 facts
Psychology50 facts
World & countries50 facts
Technology50 facts
Food50 facts
Sports50 facts
Health & medicine50 facts
Art & culture50 facts
Culture & media50 facts
Books & language50 facts
Maths & logic50 facts
Kids & family50 factsBorn in 1967 in Texas and died in 2005, she appears in the 2010 Guinness World Records as the oldest cat ever recorded.
Her owner credited her long life to this diet, along with broccoli and a drop of red wine. But coffee and alcohol are toxic to cats, and her age was never independently verified.
Source: Guinness World Records — Oldest cat ever · Checked on October 26, 2026
Around 2800 BC, soap-like products were already being made, and a Sumerian tablet from 2500 BC gives a formula.
The recipe involved heating oil with wood ashes. It is the oldest chemical reaction recorded in writing. These were “proto-soaps,” different from our soaps today.
Source: Wikipédia (Soap) · Checked on October 26, 2026
Asteroids there are separated by huge distances compared with their size.
Space probes have crossed the belt without having to zigzag between rocks.
Source: NASA Science — Asteroid belt · Checked on October 24, 2026
The chemical makeup of tears changes dramatically depending on whether you're cutting an onion or crying from sadness.
Emotional tears contain extra stress hormones, suggesting that crying literally helps release tension from the body.
Source: American Academy of Ophthalmology — Types of Tears · Checked on October 24, 2026
About 7 meters (23 ft) tall and weighing over 6 metric tons (13,000 lb), it dates from the Gupta dynasty, around AD 400–450.
Its phosphorus content helped form a thin protective layer of oxides and phosphates that slows corrosion, aided by Delhi's dry climate. It is not magic iron: it is simply protected by that layer.
Source: Britannica — Iron pillar of Delhi · Checked on October 24, 2026
They can raise small bumps on their skin to imitate a rock or coral.
Thanks to specialized muscles under the skin called papillae, they can raise small bumps on their bodies to mimic the rough look of a coral or rock.
Source: Marine Biology Journal — Octopus Skin Papillae · Checked on October 24, 2026
FunFact is a general knowledge app for iPhone, iPad and Android. It shows surprising, fact-checked facts across 18 topics, one at a time, with the source of each fact.
Yes. The app is free to download and 5 topics are free to read. FunFact Premium, a subscription with a free trial, unlocks every topic, unlimited reminders, customizable widgets and every visual style.
Every fact is checked before it is published and shows its source (a science agency, a museum, an encyclopedia or a published study) and the date it was checked. If you spot a mistake, write to us and we fix it.
No. FunFact works without an account. Your favorites, collections and settings stay on your device.
No. FunFact has no ads.
English, French and Spanish. The app follows your phone's language.
You choose how many facts you want each day (up to 10) and between which hours. FunFact sends them as notifications through the day, so you learn something without opening the app.
Yes. The FunFact widget shows a fact on your home screen, on iPhone and Android. On iPhone, the “On this day” lock screen widget shows a historical event that happened on the same date.
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.