Comparison

Between Dates Calendar Math vs Converter and Calculator

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

Converter and Calculator

This app functions as a unit and currency converter, offering over 500 units across 29 categories. It features a full-screen calculator with memory functions and allows for extensive customization of displayed units and their order.

Highlights
  • Unit and currency conversion
  • Full-screen calculator
  • Customizable units and categories
  • In-line calculations
  • Convert multiple units simultaneously
  • Automatic regional formatting
Features
Read full description

A calculator & unit & currency converter with a super clean interface, standalone calculator, customizable color, and over 500 units in 29 categories (161 currencies). Display only the units and categories you want and put them in any order. Fast, Easy To Use: Pick a category, pick a unit, and then enter an amount. All other units are instantly converted to your selected unit as you enter amount. Features: • Full screen calculator with memory functions quickly accessible from bottom toolbar • Customizable color • Customizable units (display only the units & categories you want in whatever order you want) • In-line calculations while converting (fractions, decimals, add, subtract, multiply, divide). • Convert multiple units / currencies at once • Both unit names and symbols shown. • Results with up to 12 significant digits. • Automatic formatting of decimal and thousands separators according to your Region. • Automatic formatting of extremely large or small numbers with scientific E notation. Options: - Font Size - Sound - Color Theme - Minimum Decimal Digits (0-12) - Maximum Decimal Digits (0-12) - Show Thousands Separators - E Notation (Off, Auto, Scientific, Engineering) - Equals Repeat - Replace ÷ Button With / - Replace E Button With Hidden, EE, 00, 000 - Show Memory Buttons - Memory Store (Result, Last Input Number) - Currency Updates - Symbol First - In-Line Definitions - UK Spelling 501 Units In 29 Categories: • Acceleration • Angle • Area • Blood Cholesterol • Blood Glucose • Capacitance • Currency • Data • Density • Dynamic Viscosity • Electric Charge • Electric Current • Electric Potential • Electrical Conductance • Electrical Resistance • Energy • Force • Frequency • Fuel Economy • Length • Mass • Power • Pressure • Speed • Temperature • Time • Torque • Volume • Weight (Mass) URL Scheme: converterpro://

Screenshots

Between Dates Calendar Math4 screens
Converter and Calculator4 screens

Verdict

The call

Between Dates Calendar Math and Converter and Calculator both sit at 4.8 stars, but that hides the real split: 90% of Converter and Calculator's written reviews are positive against 50% of Between Dates Calendar Math's. Converter and Calculator also leads on update cadence (every 2 weeks vs every 4 months) and ratings volume (268 vs 42). Between Dates Calendar Math's advantage is price ($0.99 vs $2.99). On rating, 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 Converter and Calculator $2.99 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 4.7 for Converter and Calculator. That said, the two scores are not equally well evidenced: Converter and Calculator has 268 ratings behind it against 42, 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 90% of Converter and Calculator's.

UpkeepUpdate frequency

Between Dates Calendar Math ships an update every 4 months, Converter and Calculator every 2 weeks. The most recent releases landed on October 23, 2026 and October 21, 2026 respectively.

Scorecard5 real differences · 5 level
Between Dates Calendar Math versus Converter and Calculator: the parameters behind the verdict, then further details
ParameterBetween Dates Calendar MathConverter and Calculator
Price$0.99 — better$2.99
Rating4.8 (42 ratings) — better4.7 (268 ratings)
Positive reviews50.0% of reviews90.2% of reviews — better
Number of ratings42268 — better
Update frequencyEvery 4 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, iPod
Requires iOS13.013.0
Further details — not scored
Size1 MB9 MB
Age rating4+4+
DeveloperDucky Planet LLCCider Software LLC

Customer experience

Between Dates Calendar Math

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

Converter and Calculator

All ratings267 ratings
Positive95.1%
Neutral2.2%
Negative2.6%
Written reviews41 reviews
Positive90.2%
Neutral7.3%
Negative2.4%

Bugs and requests

Between Dates Calendar Math

Not enough reviews yet to summarise bugs or requests.

Converter and Calculator

Reported bugs

3 issues
  • App not updating calculations daily
  • Conversion table setup is off by one line
  • No Copy/Paste functionality

Requested features

4 requests
  • Support today's widget
  • Add Vietnamese language
  • Create custom units
  • Add a search bar

In-app purchases

None

Between Dates Calendar Math

No in-app purchases

None

Converter and Calculator

No in-app purchases

Questions

Is Between Dates Calendar Math free?
Between Dates Calendar Math costs $0.99, with no in-app purchases.
Is Converter and Calculator free?
Converter and Calculator costs $2.99, with no in-app purchases.
Which has better reviews, Between Dates Calendar Math or Converter and Calculator?
Between Dates Calendar Math is rated higher. Between Dates Calendar Math averages 4.8 out of 5 from 42 ratings, while Converter and Calculator averages 4.7 from 268 ratings.
Do Between Dates Calendar Math or Converter and Calculator have ads?
Neither Between Dates Calendar Math nor Converter and Calculator shows ads.
Which is updated more often, Between Dates Calendar Math or Converter and Calculator?
Between Dates Calendar Math ships an update every 4 months, and Converter and Calculator every 2 weeks. Most recently, Between Dates Calendar Math was updated on October 23, 2026 and Converter and Calculator on October 21, 2026.

Other comparisons