Work · alternatives · 2026

24 alternatives to ThatDay

An iOS app for schedule an notification for every big date.

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. ThatDay launched in 2024; newer entries below may have overtaken it.

1. 1
   Days▲94

   A beautiful countdown app to the events that matter to you.

   2016 · daysapp.co · its alternatives →

2. 2
   Thatday▲101

   Digital keeper of your romantic life

   2020 · its alternatives →

3. 3
   Mayday▲231

   A calendar designed to help you spend time better

   2021 · mayday.am · its alternatives →

4. 4
   Mayday▲198

   The AI-assisted calendar that helps you make time to thrive.

   2023 · mayday.am · its alternatives →

5. 5
   Whenever▲93

   Casual calendar app for iOS

   2018 · whenever.io · its alternatives →

6. 6
   Days Counter▲69

   Counting days until or since a specific event

   2020 · apps.apple.com · its alternatives →

7. 7
   Google Calendar▲413

   Spend less time managing your day, now on iOS

   2015 · gmail.googleblog.com · its alternatives →

8. 8
   Today▲106

   Work on things that matter

   2020 · gettoday.app · its alternatives →

9. 9
   Great Day▲66

   Change your habits and accomplish your goals

   2017 · apps.apple.com · its alternatives →

10. 10
    Day Tracker▲59

    App to keep track of and countdown to important dates

    2020 · apps.apple.com · its alternatives →

11. 11
    Mayday▲68

    Messages that matter.

    2020 · its alternatives →

12. 12
    BirthdayAI▲105

    Smart birthday reminder app, never forget a birthday again

    2023 · birthdayaiapp.com · its alternatives →

13. 13
    DayDay 1.0▲109

    Track your progress on a daily basis by taking photos.

    2017 · getdayday.com · its alternatives →

14. 14
    Daybreak▲205

    An intelligent to-do app that learns when to remind you

    2016 · its alternatives →

15. 15
    Soon▲295

    Never miss something awesome

    2017 · apps.apple.com · its alternatives →

16. 16
    Reminder▲279

    A better reminders app

    2018 · its alternatives →

17. 17
    Later Reminders▲150

    Super simple way to schedule reminders on your phone

    2015 · laterapp.co · its alternatives →

18. 18
    Days Without An Incident▲71

    A simple app that lets you count the days since ... anything

    2016 · its alternatives →

19. 19
    One Big Thing▲322

    Focus on your biggest task every day

    2016 · onebigthing.co · its alternatives →

20. 20
    Yearly▲160

    Simple and colorful calendar app.

    2016 · apps.apple.com · its alternatives →

21. 21
    Reminder▲72

    Reminder app to organize tasks, deadlines, and to-do lists

    2021 · play.google.com · its alternatives →

22. 22
    Daily Routine▲113

    iOS app that schedules your day into key tasks

    2015 · dailyroutineapp.com · its alternatives →

23. 23
    Every Year▲172

    A perennial calendar that helps you remember annual events

    2024 · apps.apple.com · its alternatives →

24. 24
    Today▲66

    Calendar designed to help you focus

    2023 · tdy.sh · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →