# DateCalcMemo ～ how many days

> Utility app to calculate days between dates and future/past dates. (iPhone/iPad app by TOSHIYUKI SEKIZAKI.)

- Source: https://appshunter.io/ios/app/datecalcmemo-how-many-days/id702646469 (this page in markdown: same URL + `.md`)
- Developer: [TOSHIYUKI SEKIZAKI](https://appshunter.io/developer/664398153)
- Category: Utilities, Lifestyle
- Price: Free
- Rating: 5.00/5 from 6 App Store ratings · 6 written reviews indexed
- Age rating: 4+
- Requires: iOS 8.0 · 9 MB
- Languages: American English, Japanese
- Released: 2013-09-17
- Data updated: 2026-06-06
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/datecalcmemo-how-many-days/id702646469/reviews.md

## What is DateCalcMemo ～ how many days?

----------------------------------------
- Add a mode to calculate the number of days between two dates
- Add a mode to calculate the date of the date the number of days before or after
※ note. The results is not saved in the above modes.
----------------------------------------

Usually, "I wonder how many years passed since then," Do not you think?
· Since you have moved
· Since you graduated from school
· Since the beginning of something new
· Etc ...

This application calculate the one below.
· How many days have passed from the specified date
· In how many days until the specified date

You can save results of the calculation along with some words.

※ Please note that it also delete the data if you remove the app.

## Key features

- Calculate days between two dates
- Calculate future/past dates
- Save calculation results
- Add notes to saved calculations
- Delete app data when app is removed

## Recent user reviews (6 of 6)

All indexed reviews: https://appshunter.io/ios/app/datecalcmemo-how-many-days/id702646469/reviews.md

### 5/5 — Great Tool

*2025-10-03, version 2.4.1*

Great tool for calculating date ranges and days for travel and insurance coverages. It has come in handy and very useful on many occasions.

### 5/5 — Very useful!

*2018-10-25, version 2.4*

Many thanks to the developers for a great and very useful app.

### 5/5 — All Good

*2018-02-19, version 2.3*

I basically use it to keep track of important dates of the past, to keep up how long I’ve been doing it. And when to stop if needed, they serve my needs, it’s simple and I am not technical that’s it.

### 5/5 — Pretty cool

*2015-11-29, version 2.2*

It's does what it says and it's pretty neat.  The only thing is that it's calibrated kind of weird and looks a little zoomed in on the iPhone 6

### 5/5 — Works great!

*2015-10-28, version 2.2*

Does what it says, no issues so far

### 2/5 — Great simple app but

*2015-02-14*

It would be very useful if it were possible to move the dates entered up and down to change the order of presentation. 
Plus have the ability to show a picture as well.
Other than that it does calculate the dates ok.

## Frequently asked questions about DateCalcMemo ～ how many days

### How does DateCalcMemo calculate days?

DateCalcMemo offers two primary modes: one to calculate the exact number of days between two specified dates, and another to determine a date that is a certain number of days before or after a given date.

### Can I save my calculations in DateCalcMemo?

Yes, you can save the results of your calculations along with custom notes. This is useful for remembering important dates like anniversaries or milestones.

### What happens to my saved data if I delete DateCalcMemo?

Please note that if you remove the application from your device, all saved data, including your calculations and notes, will also be deleted.

### Is DateCalcMemo available on Android?

Based on the provided information, DateCalcMemo is currently supported on iPhone and iPod devices. Support for other platforms like Android is not specified.

### How often is DateCalcMemo updated?

The latest version of DateCalcMemo is 2.4.1, which was last updated on October 28, 2018. This indicates a less frequent update cycle.

### What is the age rating for DateCalcMemo?

DateCalcMemo has an age rating of 4+, making it suitable for a wide range of users. The app's content is considered appropriate for young children.

### Does DateCalcMemo have ads?

No, DateCalcMemo does not contain advertisements. The app is free to use and offers in-app purchases.

### What is the user sentiment for DateCalcMemo?

DateCalcMemo has received an excellent rating of 5.0 stars from 6 ratings, suggesting a very positive user experience and satisfaction with its functionality.

## Version history (last 5 releases)

### 2.4.1 — 2018-10-28

- fix a bug about manual sort

### 2.4 — 2018-10-21

- Supports color
- miner fix

### 2.3 — 2017-10-24

- Add a function, sort by dates
- miner fix

### 2.2 — 2015-02-20

- added a "today" button to the date picker.

### 2.1.1 — 2014-02-28

- display a placeholder in the memo section.

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## More apps by TOSHIYUKI SEKIZAKI

- [By Birthday ~ 誕生日からわかること](https://appshunter.io/ios/app/by-birthday/id801752988)
- [HopTilePuzzle](https://appshunter.io/ios/app/hoptilepuzzle/id877957885)
- [JS Puzzle 〜JewelSavior〜](https://appshunter.io/ios/app/js-puzzle-jewelsavior/id910418079)

All apps by TOSHIYUKI SEKIZAKI: https://appshunter.io/developer/664398153

## Related topics

[date memos](https://appshunter.io/ios/topics/date-memos)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-06.*