Comparison

Between Dates Calendar Math vs DayNumCalc

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Between Dates Calendar Math

Calculate the number of days between two dates with a simple interface. Save, recall, sort, and remove date calculations. Add or subtract days from selected dates for quick date projections.

Highlights
  • Calculate days between dates
  • Save and recall date calculations
  • Sort and remove saved dates
  • Add or subtract days
  • Copy dates to start/end
  • Reset dates to current
Features
Read full description

Between Days was written to quickly tell how many days are between two dates. It uses a simple interface to get these answers in the quickest way possible. Underneath the simplicity, Between Days is one of the most feature rich date apps in the app store. Don’t let the simple interface fool you, this app does show a lot of information in a clean and easy to use format. To use the app simply set the start date and end date and it will display the number of days between those two dates. To select which date to edit you can either touch the date you want to change, or press the setting start date/ setting end date button. The selector will automatically change to display the date selected. It will also display the current day of the week showing on the calendar selector. If you would like to save the date for later, simply press the save button on the bottom. To recall a date, or to view saved dates press the view dates button on the bottom. Once you are at the list of dates you can sort or remove them. You can also press on a date to use it as the current date, or press done to return to your previous dates. There are also add and subtract buttons. This is useful if you need to find what the date is before or after a certain number of days, month or years. The copy to end date/copy to start date button will set both the start date and end date to the selected date. The reset button will set the beginning and end date to the current date, but will leave your saved dates alone. I hope you enjoy this app and find it useful! If you have any questions or comments send me an e-mail at Don.Espe@gmail.com Please rate this app so I know if there is enough interest to develop new features for it.

About

DayNumCalc

This utility app provides quick access to date calculations, including finding the day number for any date, determining a date from a day number, calculating the difference between two dates, and checking the day of the week. It also offers widgets for convenient access on your home and lock screens.

Highlights
  • Calculate day number from date
  • Determine date from day number
  • Calculate days between two dates
  • Add/subtract days from a date
  • Check day of the week
  • Home screen widgets
  • Today View widgets
  • Lock screen widgets
Read full description

DayNumCalc gives easy access to basic date calculations: - The current date/day number information is immediately available. Examples: day 1 = 1 January; day 365 = 31 December (non-leap year) or 30 December (leap year) - Date/day number calculations: get the day number from a chosen date, and a date from a paired year/day number - Calculate the number of days between two dates - Determine a date after adding or subtracting a number of days fro a chosen date - Check the day of the week for a date of your choice Widgets for the Home Screen, the Today View, and the Lock Screen are available for ease of use.

Screenshots

Between Dates Calendar Math4 screens
DayNumCalc4 screens

Verdict

The call

Between Dates Calendar Math and DayNumCalc both sit at 4.8 stars, but that hides the real split: 100% of DayNumCalc's written reviews are positive against 50% of Between Dates Calendar Math's. Between Dates Calendar Math's advantage is ratings volume (40 vs 6) and iOS requirement (13.0 vs 15.5). On price, rating, update cadence and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Between Dates Calendar Math costs $0.99 and DayNumCalc $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for Between Dates Calendar Math against 4.8 for DayNumCalc. That said, the two scores are not equally well evidenced: Between Dates Calendar Math has 40 ratings behind it against 6, so its average is the more settled of the two. Written reviews are what separate them: 50% of Between Dates Calendar Math's written reviews are positive against 100% of DayNumCalc's.

UpkeepUpdate frequency

Between Dates Calendar Math ships an update every 4 months, DayNumCalc every 6 months. The most recent releases landed on August 28, 2026 and September 10, 2026 respectively.

Scorecard3 real differences · 7 level
Between Dates Calendar Math versus DayNumCalc: the parameters behind the verdict, then further details
ParameterBetween Dates Calendar MathDayNumCalc
Price$0.99$0.99
Rating4.8 (40 ratings)4.8 (6 ratings)
Positive reviews50.0% of reviews100.0% of reviews — better
Number of ratings40 — better6
Update frequencyEvery 4 months — betterEvery 6 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, iPod
Requires iOS13.0 — better15.5
Further details — not scored
Size1 MB1 MB
Age rating4+4+
DeveloperDucky Planet LLCMayra M Martinez

Customer experience

Between Dates Calendar Math

All ratings40 ratings
Positive95.0%
Neutral0.0%
Negative5.0%
Written reviews8 reviews
Positive50.0%
Neutral25.0%
Negative25.0%

DayNumCalc

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Between Dates Calendar Math

No in-app purchases

None

DayNumCalc

No in-app purchases

Questions

Is Between Dates Calendar Math free?
Between Dates Calendar Math costs $0.99, with no in-app purchases.
Is DayNumCalc free?
DayNumCalc costs $0.99, with no in-app purchases.
Which has better reviews, Between Dates Calendar Math or DayNumCalc?
Between Dates Calendar Math and DayNumCalc are both rated 4.8 out of 5 on the App Store, from 40 and 6 ratings respectively.
Do Between Dates Calendar Math or DayNumCalc have ads?
Neither Between Dates Calendar Math nor DayNumCalc shows ads.
Which is updated more often, Between Dates Calendar Math or DayNumCalc?
Between Dates Calendar Math ships an update every 4 months, and DayNumCalc every 6 months. Most recently, Between Dates Calendar Math was updated on August 28, 2026 and DayNumCalc on September 10, 2026.

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