Comparison

Between Dates Calendar Math vs Up&Down Timer

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

Up&Down Timer

Features
Read full description

Up&Down Timer counts down to zero or up from zero — one simple timer for cooking, study, workouts and focus. Set any duration in seconds with a fast numeric keypad, like a calculator. Tap start, and a Live Activity shows the time right on your Lock Screen and Dynamic Island — no need to open the app. When time is up, you get sound, vibration and a notification you won't miss. WHY YOU'LL LOVE IT • Countdown and count-up in one app • Fast keypad entry for hours, minutes and seconds • Live Activity on Lock Screen and Dynamic Island • Clear finish alert: sound, vibration, notification • Pause and resume with accurate time • Precise in the background and while locked • iPhone and iPad, 34 languages PERFECT FOR • Cooking and baking • Study, focus and Pomodoro sessions • Workouts and interval training • Work time-boxing • Meditation and rest • Talks and presentations • Brewing coffee and tea • Winding down before bed Simple, beautiful, distraction-free. Set your first timer in seconds.

Screenshots

Between Dates Calendar Math4 screens
Up&Down Timer4 screens

Verdict

The call

The clearest difference is price: Between Dates Calendar Math at $0.99 against Up&Down Timer's $1.99. On update cadence, ads, in-app purchases and device support 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 Up&Down Timer $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on October 6, 2026 and October 9, 2026 respectively.

Scorecard1 real difference · 9 level
Between Dates Calendar Math versus Up&Down Timer: the parameters behind the verdict, then further details
ParameterBetween Dates Calendar MathUp&Down Timer
Price$0.99 — better$1.99
Rating4.8 (42 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings42 — better—
Update frequencyEvery 4 monthsEvery 4 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, iPod
Requires iOS13.0 — better14.0
Further details — not scored
Size1 MB5 MB
Age rating4+4+
DeveloperDucky Planet LLCNetflowers Inc.

In-app purchases

None

Between Dates Calendar Math

No in-app purchases

None

Up&Down Timer

No in-app purchases

Questions

Is Between Dates Calendar Math free?
Between Dates Calendar Math costs $0.99, with no in-app purchases.
Is Up&Down Timer free?
Up&Down Timer costs $1.99, with no in-app purchases.
Do Between Dates Calendar Math or Up&Down Timer have ads?
Neither Between Dates Calendar Math nor Up&Down Timer shows ads.
Which is updated more often, Between Dates Calendar Math or Up&Down Timer?
Between Dates Calendar Math ships an update every 4 months, and Up&Down Timer every 4 months. Most recently, Between Dates Calendar Math was updated on October 6, 2026 and Up&Down Timer on October 9, 2026.

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