Workday plan? travel plan? Or other calculation date? Now use this application to easily plan!

Dual calendar shows that you can easily arrange planning matters.

(1) This app can display two calendars.
(2) From today to calculate, show the number of days before and after.
(3) From another calendar to calculate, show the number of days before and after.
(4) Calendar [Week] is displayed.

(1) discuss the progress of the date.
(2) the estimated number of days required.

Watch Demo Video:

If you have any question or problems please contact
We are committed to fixing bugs as soon as possible.


Privacy Policy

What’s New

Version 11.1.0

Bug fixed.

Ratings and Reviews

2.0 out of 5
4 Ratings
4 Ratings
soubeagi ,

still (!) must use v10.5.0 on iOS 10.3.3

UPDATE: I've tried v10.8.0 and now v11.1.0, and neither of them works; also, your Dual Web Browser has the same problem.

This WAS a nice little utility program that I would use a few times every week for planning my schedule, but these updates killed it for me. This probably has to do with the fact that I'm still using iOS10, but now every time I try to run it, it immediately loses focus, and refuses to come to the foreground. Luckily, I managed to get the old version back, but most people wouldn't have a way to do this.

Developer Response ,

We have updated the latest SDK. Please check it again. Thank you!

Concertoblack ,

Crashes iOS 10.3

As developer reply and informed that JB not supported, I never JB my devices so address the issues and previous review still valid, Looks good but not working and always crashes previously complained the user but developer have no attention to solve the issues. i can't open it. Plz check it Developer

Developer Response ,

Thank you for your opinion, we will continue to optimize this app.
Please note that this app does not support JB device.


Han Chang Lin
71.4 MB

Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Rated 4+
© Han Chang Lin


  • Family Sharing

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

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