Good to know
What is Historidex?
A history learning app that works like a feed. Every screen is a real photo or film from a public archive, with a short caption that explains it in under a minute.
Is Historidex free?
Ten stories a day are free, with no account and no ads. Historidex Pro is $2.99 a month and removes the daily limit.
Where do the photos and films come from?
From public collections such as the Library of Congress, the National Archives, the Smithsonian, the Met and NASA. Every story links to its archive record, so you can see the original.
How do you know the stories are true?
Each story is written from at least two sources, then checked by two independent fact-checkers. The rights to every image are checked three ways, so you only see pictures that are free to use.
How does the guess-the-year quiz work?
Some stories hide their year. You pick one of three, then see your guess on a timeline next to the real answer. Guessing first makes the answer easier to remember.
Do I need an account?
No. There is nothing to sign up for. What you save stays on your device.
Is there an iPhone app?
It is in App Review now. Until it is out, Historidex works free in your browser.
How many notifications does it send?
One, and only if you want it: a daily reminder at 8 a.m., noon or 8 p.m.