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  • That's a Day? screenshot 1
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  • That's a Day? screenshot 4

About That's a Day?

Happy Lost Sock Memorial Day. Wait, that's a day? It is. May 9, every year. Tomorrow is one too. So is the day after. So is that unremarkable Tuesday in March you had no plans for. That's a Day? is a calendar of over 2,000 real holidays: the famous ones, the strange ones, and a genuinely alarming number of days about pie. Open it in the morning and find out what today is. EVERY MORNING, SOMETHING TO CELEBRATE • Today's celebrations, with one picked out as the headline • The origin story, including who started it and why they bothered • A few fun facts per holiday, which is a few more than you had yesterday • A few ways to actually celebrate, from "do it at your desk" to "clear your afternoon" • Somewhere near you to do it, when somewhere near you exists DAYS WE ARE NOT MAKING UP Spreadsheet Day. Iguana Awareness Day. If Pets Had Thumbs Day. World Camel Day. Talk Like a Pirate Day. Ditch New Year's Resolution Day, which lands on January 17 with impeccable timing. Each one is checked against a real source before it ships. The origins, the facts and the ways to celebrate are reviewed by our editorial team, and anything we cannot stand behind gets cut instead of padded out. THE WEEK AHEAD See what's coming so you can plan the good ones. Some holidays deserve notice. Banana Split Day deserves notice. SHARE THE RIDICULOUS ONES Turn any holiday into a card worth posting: the fact, the day, and a design that does the work for you. Your group chat has been waiting for Dance Like a Chicken Day. ON YOUR HOME SCREEN A widget with today's celebration, so you find out before someone else does. THAT'S A DAY? PRO No ads, ever. Every holiday, every day. $9.99 per year, or $2.99 per month. Pro is an auto-renewing subscription, charged to your Apple Account. It renews unless you turn off auto-renew at least 24 hours before the period ends. Manage or cancel anytime in your Apple Account settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://thatsaday.app/privacy Free to use, with ads. No account, no sign-up, no email required.

Ratings & reviews

5.0

12 ratings

5 ★ 100% 4 ★ 0% 3 ★ 0% 2 ★ 0% 1 ★ 0%

What’s new

Version 1.1 · Updated October 18, 2026

Found a holiday worth bragging about? Now you can share it without leaving the page. Tap Share a card on any holiday and pick your look: Big stat, Polaroid or Poster. Choose which fun fact goes on it, drop in your own photo if you like, and send it. Three taps from "That's a Day?" to your group chat. Plus the usual round of small fixes under the hood.

App privacy

The developer, Green Coast, Blue Nile LLC, reported these privacy practices to Apple.

Data Used to Track You

The following data may be used to track you across apps and websites owned by other companies:

  • Purchases: Purchase History
  • Identifiers: Device ID
  • Usage Data: Product Interaction, Advertising Data

Data Linked to You

The following data, which may be collected and linked to your identity, may be used for the following purposes:

  • Purchases: Purchase History
  • Identifiers: Device ID
  • Usage Data: Product Interaction, Advertising Data
  • Contact Info: Email Address

Used for: Third-Party Advertising, Developer’s Advertising or Marketing, Analytics

Data Not Linked to You

The following data, which may be collected but is not linked to your identity, may be used for the following purposes:

  • Diagnostics: Crash Data

Used for: App Functionality

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