# Between Dates Calendar Math — user reviews

> 8 indexed App Store user reviews of Between Dates Calendar Math by Ducky Planet LLC, rated 4.80/5 from 40 ratings.

- Source: https://appshunter.io/ios/app/between-dates-calendar-math/id442169104/reviews
- App overview in markdown: https://appshunter.io/ios/app/between-dates-calendar-math/id442169104.md
- Rating breakdown: 5★ 36 · 4★ 2 · 3★ 0 · 2★ 0 · 1★ 2

## Most critical reviews (8 lowest-rated)

### 2/5 — Interesting idea, but lacking in functionality

*2011-12-30*

Interesting idea, but lacking in functionality.
First: disable the sound. It's horrible.
Second: lack of information. For example:
- display working days vs weekends.
- maybe integrate the ability to add time gaps (for holidays ... )
- maybe some more weird info > seconds, minutes ... 
A few requests from a free user, but i think will help. 
I will change my rating accordingly for future updates ( but not only for my requests, surprise us).

### 2/5 — Needs to have time of day also

*2011-12-30*

I will give 5 stars if u add time so that u can set even the time of the day

### 3/5 — Not the Prettiest App

*2026-04-30*

App looks clunky,, design is not great. But, it does the job.

**Developer response:** Thank you for your feedback. We appreciate your honesty and understanding. I’m always looking for ways to improve the design and features to meet the needs of the users. If you have any suggestions that would improve your experience, feel free to send them to don@duckyplanet.com.

### 3/5 — A little complicated

*2011-12-30*

I don't really like the layout .   Picking a date and having to copy to start or end is too much work for me. I just wanted a simple date difference.  Maybe 2 spinning wheel top n bottom n result in the middle?  And a subtract box next to result?  I think most ppl would prefer something nice simple n efficient.  I will keep this app since I need something like this, until probably the next update.

### 4/5 — Useful, but confusing interface

*2014-03-18*

I use this app to calculate time between my last booked flight and the next.

It works ok, although if I try to enter a date earlier than the current date, the interface can be a bit confusing with dates greyed out and so not available. Although it can be done, it would be much simpler and more intuitive if I could just choose the dates I want. 

For that reason I give it 4 stars rather than 5.

The App Support Button on the App Store page (this page) takes you to a weird site about Bath Ducks (go figure) so no apparent way to contact the developer.

### 5/5 — Great support from dev

*2026-04-15*

A feature was missing for my own use (mainly genealogy research) : the possibility to add/substract years also, not just days as it is now (v6.6).
I wrote to the dev about this suggestion and he replied within 24 hours that he will implement it in a future update.
Great response from Don ! 👌🏻

### 5/5 — A very necessary app

*2020-10-09*

I have depended on this app for several years. I use it to advise me of things that must been done on exact dates in the future. The developer is extremely responsive and accommodating. 
Thank you !!

**Developer response:** I'm glad I could help.

### 5/5 — Great for doctors and researchers

*2016-03-23*

Taking a medicine BID for 15 days means you should have 1 day and 7 hours left. need hours and seconds.

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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 2026-08-28.*