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App Store Apps > Business > Cal2Todo
Cal2Todo icon

Cal2Todo

by Yasuko Shikiuchi · Business · $0.99
On the App Store since November 2011 · Data updated 2026-10-28

Cal2Todo is made and published by Yasuko Shikiuchi. AppBrain is an independent app data site and isn't affiliated with Yasuko Shikiuchi. The app name, icon, screenshots and description belong to Yasuko Shikiuchi and are shown as published on the App Store.

AppBrain's verdict

Established
Best rank
#32
Top Paid, Japan
Rating on App Store
4.00
1 ratings
Last updated
March 14, 2025

It doesn't have enough ratings yet to judge what users think. Its best ranking is #32 in Top Paid, Business in Japan.

Official page on the App Store

Rankings

App Store top charts
Highest rank
#32
Chart
Top Paid
Business
Country
Japan

App Store Rankings for Cal2Todo

Top rankings

Rank Country Category List
32 Japan Business Top Paid

Ranking history in Japan

Competitors

Similar apps and more from Yasuko Shikiuchi

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3 ratings

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Releases

Updates seen on the App Store
Version
5.6.20
Launched
November 2011

No changelog data

User feedback

Ratings and reviews on the App Store

Comments on Cal2Todo for iOS

We don't have enough comments to show example comments. Please check back later.

Technology

Found in the app by AppBrain
Price
$0.99
App size
39.1 MB
Content rating
Everyone

Technologies used by Cal2Todo

About the app and developer

About Cal2Todo

Cal2Todo is a business app developed by Yasuko Shikiuchi.

User Ratings

Cal2Todo is rated 4.00 out of 5 stars. The rating is based on one rating ratings.

App Information

Cal2Todo costs $0.99. The app size is 39.14 MB. The latest version available is 5.6.20. The last update was on March 14, 2025.

Technical Requirements

The app has a content rating of Everyone. The app has been available on the App Store since November 2011.

Developer information for Yasuko Shikiuchi

Yasuko Shikiuchi

Address:

Frequently asked questions about Cal2Todo

Is Cal2Todo free?

No. Cal2Todo costs $0.99 on the App Store.

Is Cal2Todo still available?

Yes. Cal2Todo is on the App Store, and the last update we saw was on March 14, 2025.

How large is Cal2Todo?

Cal2Todo is 39.14 MB.

Is Cal2Todo suitable for children?

App Store rates the content of Cal2Todo as suitable for everyone.

How do people rate Cal2Todo?

Cal2Todo has one rating of 4.00 stars on the App Store.

Who made Cal2Todo?

Cal2Todo was developed by Yasuko Shikiuchi. It is listed in the business category on the App Store.

What are the best alternatives to Cal2Todo?

People looking at Cal2Todo also look at these business apps: レジロジ, Rocket Memo, タスク管理 - Noren, IP電話 - サテライトオフィス, RectAce (High-Quality Scanner).

Share Cal2Todo

Store listing

By Yasuko Shikiuchi, from the App Store
Cal2Todo Screenshot 1 of 3
Cal2Todo Screenshot 2 of 3
Cal2Todo Screenshot 3 of 3
Screenshots by Yasuko Shikiuchi, from the the App Store listing
Description by Yasuko Shikiuchi Written by the developer, not by AppBrain. Click to read.
THINK-OUT-OF-THE-BOX Calendar app - PROCRASTINATION MADE EASY!

-Your EVENTS now appear as your TASKS.
-You will never forget your appointments using this app.
-You can push tasks back later.
-It has an Intuitive design allowing you to quickly look at the day's agenda.
-You can use Google calendar as well, if your built-in calendar is synced with Google calendar.

Who will benefit most from this app?
-Users who want only one integrated app to control their schedules rather than two separate apps (scheduler and todos).
-Users who usually procrastinate and sometimes forget to do things.
-Users who want to finish everything before going to bed.

Convenient 4-day view
-Fully compatible with the built-in iPhone calendar.
-You access your recent appointments by tapping the buttons at the bottom of the screen.
-Can display a count-down timer for your next appointment or event.
-Colorful screen - pick different colors for different calendars

Basic usage
-Home screen has today's agenda.
-When you finish events, you check them off. Once checked, it goes into the background.
-Items in red are overdue. Items in yellow are upcoming appointments (Less than an hour)
-Most importantly, when you realize that you do not have time to do something, hit PROCRASTINATE. Don't worry, It will come back in a couple of days!!

Items can be deffered from 15 mins to 2 weeks. These settings are fully customizable.
- Today update the date as of today
- Tomorrow update the date as of tomorrow
- Next week update the date as the same day next week
- Morning update the time for the next few mornings.
- Afternoon update the time for the next few afternoons.
- Evening update the time for the next few evenings.
- 1hr later push back 1hr
- 3hrs later push back 3hrs
- 5hrs later push back 5hrs
- and more!

Miscellaneous
-The button on the top-left of your screen will toggle items to be visible/invisible.
-You can edit your items on this app and the changes will appear on the original built-in calendar.
-You can delete items by swiping & tapping.
-You can select the calendar(s) of your choice.

Note:
-This calendar only focuses on the next four days (yesterday, today, tomorrow, and the day after tomorrow)
-The app retains the "Check ON/OFF" data by tagging the item with an ID. Some apps might change this ID. If that is the case, Cal2todo might not work properly.
-This app only communicates with the database when it starts, therefore, the icon badge will not be updated until you open Cal2todo.
Official page on the App Store
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