Comparison

Between Dates Calendar Math vs Calendar Clock

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

Calendar Clock

This app displays the current year, month, week, and time on a single screen with a clean design. It offers customizable theme colors and functions as a desk clock. The app disables device sleep mode while active.

Highlights
  • All-in-one screen display
  • Year, month, week, day, hour, minute, second
  • Switchable theme colors (dark, light, green, blue)
  • Disables device sleep mode
  • Acts as a desk clock
Features
Read full description

Time and date, beautifully together. Calendar Clock is a simple, elegant time-and-calendar app designed for iPhone and iPad. See the current time and the entire month at a glance, with a clean interface that stays out of your way. Features * Large digital clock — View the current system time clearly and instantly. * 24-hour or 12-hour format — Swipe across the clock to switch between 24-hour and AM/PM formats. * Monthly calendar — See the full month with the current year and month displayed above it. * Swipe through months — Swipe left or right on the calendar to move between months. * Today at a glance — Today's date is highlighted with a red circle. * Weekend highlighting — Saturdays and Sundays are displayed in red. * Multiple themes — Swipe up or down to change the screen theme. * Remembers your preferences — Your selected clock format and theme are preserved. * iPhone & iPad — Designed for both iPhone and iPad. Simple by design No complicated menus. No unnecessary controls. Just the time and the calendar, exactly when you need them. Calendar Clock — See time. See your day. Note that this application disables your device's sleep mode while running, so make sure you have enough battery life. *Important notice: Use the information recoded or functionality provided in / or generated with this application only as a rough indication, rough estimates or as a rough guide. Even though we do our best to provide you with confirmed information and tried-and-tested features, the accuracy and successful operation and performance of the application are NOT GUARANTEED by us. Users are strongly advised to confirm the information of their interest with other sources and not to ultimately rely on functionality and performance of this application. This application is provided “as is” and with all faults. You bear the risk of using it. We shall not be responsible or liable for any loss or damage of any kind incurred as a result of the use of functions or the content of this application. By using this application you are agreeing to these terms. If you do not agree to these terms do not use this application.

Screenshots

Between Dates Calendar Math4 screens
Calendar Clock4 screens

Verdict

The call

The clearest difference is review sentiment: Between Dates Calendar Math at 50% against Calendar Clock's 0%. Between Dates Calendar Math also leads on update cadence (every 4 months vs every 41 months) and device support (4 vs 2). On price, ads, in-app purchases and monetization model 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 Calendar Clock $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Between Dates Calendar Math ships an update every 4 months, Calendar Clock every 41 months. The most recent releases landed on October 6, 2026 and September 30, 2026 respectively.

Scorecard4 real differences · 6 level
Between Dates Calendar Math versus Calendar Clock: the parameters behind the verdict, then further details
ParameterBetween Dates Calendar MathCalendar Clock
Price$0.99$0.99
Rating4.8 (42 ratings) — better—
Positive reviews50.0% of reviews — better0.0% of reviews
Number of ratings42 — better—
Update frequencyEvery 4 months — betterEvery 41 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad
Requires iOS13.0 — better26.5
Further details — not scored
Size1 MB4 MB
Age rating4+4+
DeveloperDucky Planet LLCSystemiko Inc.

Customer experience

Between Dates Calendar Math

All ratings42 ratings
Positive95.2%
Neutral0.0%
Negative4.8%
Written reviews8 reviews
Positive50.0%
Neutral25.0%
Negative25.0%

Calendar Clock

Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Between Dates Calendar Math

No in-app purchases

None

Calendar Clock

No in-app purchases

Questions

Is Between Dates Calendar Math free?
Between Dates Calendar Math costs $0.99, with no in-app purchases.
Is Calendar Clock free?
Calendar Clock costs $0.99, with no in-app purchases.
Do Between Dates Calendar Math or Calendar Clock have ads?
Neither Between Dates Calendar Math nor Calendar Clock shows ads.
Which is updated more often, Between Dates Calendar Math or Calendar Clock?
Between Dates Calendar Math ships an update every 4 months, and Calendar Clock every 41 months. Most recently, Between Dates Calendar Math was updated on October 6, 2026 and Calendar Clock on September 30, 2026.

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