DayCalc - Countdown for Calendar Events

Did you ever wonder whether you had enough time to grab a coffee before your next meeting? Did you wish there was a real-time calculation of the time you had left? With DayCalc your calendar now becomes even smarter. DayCalc now allows you to forget about dates and concentrate on what's important; your work. With the convenient calendar countdown widget you have access to perfect time management. Know how long you have left until needing to be anywhere. Instead of mentally mapping date and time to travel times, you could just spend a little more on your assignments.

DayCalc is an innovative app that extends the capabilities of your iPhone's built-in calendar app. DayCalc aims to be your main hub for viewing upcoming calendar events. Additionally DayCalc performs various date calculations (such as distance between two dates) and let's you save deadlines directly within the app. DayCalc is improved constantly and will be updated frequently!



*** 3D Touch Enabled! Add new events and deadlines directly from the home screen! ***

Calendar Countdown:
- View all upcoming calendar events
- A countdown will display the time left until the start or the end of the event (for current day events)
- Interact with the deadlines directly from within DayCalc (get directions, contact participants, open associated links etc.)
- Add new events to your calendar directly from DayCalc
- Hide calendars you don't want to see within DayCalc, the widget or the watch app

- Save tasks, projects or special events within DayCalc
- See the days remaining until the due date and a live countdown for current day Deadlines
- Export the Deadlines to your calendar
- Set reminders via push notifications (i.e. at the due date, 5 min before, 1 hour before etc., or even 1 week before)
- Set your own color scheme for current day, upcoming and expired deadlines

Distance Calculator:
- Calculate the distance between 2 points in time
- See the amount of total days between these dates, as well as just the number of working days
- Create a new calendar event or deadline from the result

Distance Adder:
- Add a chosen amount of days, months or years to a specified start date
- All results will be stored and can be used to directly create a new calendar event or deadline

Weekday Calculator:
- Calculate the weekday on a specific date
- Get additional information such as the calendar week, distance in days to the current date, etc.
- All results will be stored and can be used to directly create a new calendar event or deadline



- See the next 2 all-day and the next 2 regular events within your calendar
- A timer will count down until the beginning and subsequently the end of the regular events



- English
- German

More languages will be added in the future!



DayCalc is a one man project with great support. The app will be improved continually and will receive frequent updates! Whether you have feature requests, experience bugs or have other inquiries, the developer is more than happy to receive your emails. Contact information can be found on directly on the linked website, where you can also find support.

What’s New

Version 2.3.6

- Bugfixes

IMPORTANT: The next update will drop support for iOS 10 & 11 as well as watchOS 3 & 4. Future updates will only work for iOS 12 and above as well as watchOS 5 and above.

Ratings and Reviews

4.0 out of 5
1 Rating

1 Rating

Manic Bobo ,

Decent counter

This is a handy app. It is really nice having the calendar items and deadlines in one location. The developer was quick to fix a reported issue. As it is it’s pretty nice. It would be more useable to me if years were added to the date wheels. Things don’t just come due in this year alone, I have projects due into next year, and need to spin towards that date a day at a time, and that becomes even more important as you get closer to the next year. It would also be great to add to the Deadlines directly from the calendar instead of having to create a new due.

Developer Response ,

Thank you for your review and for taking the time to reach out. A fix for your reported issue is releasing soon. If this update satisfies you, I'd be thrilled if you re-reviewed the app. In case you have additional suggestions you are always welcome to send a message via the email address provided in the about section of the app.

Considering the date distance calculator, the result is actually correct assuming you turned off the inclusion of the start and end dates. Adding up the days in-between the dates you mentioned yields 9 days.

App Privacy

The developer, Erik Maximilian Martens, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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