Comparison

Time Calculator vs Date.Time Calculator

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

Head to head
About

Time Calculator

Easily add or subtract days, hours, minutes, and seconds. Calculate time differences between two times or add time to a specific date. Store results and save reminders directly within the app.

Highlights
  • Add/subtract days, hours, minutes, seconds
  • Calculate time differences
  • Add time to specific dates
  • Convert seconds to minutes and seconds
  • Store answers in memory
  • Save reminders and calendar events
Features
Read full description

This is the simplest app to make your time calculations. Install and open the app and start to add and subtract days, hours, minutes and seconds. What date-time will be in the next 23 days 13 hours 15 minutes?. Press the "Now" button and add the days, minutes, hours and seconds you want. You don't need to configure anything. Other things you can do: - How many minutes are 280 seconds?. Type 280s and press twice the "=" sign. You will get 4m 40s - How many time has passed from 9:23 AM yo 2:32 PM?. Type 14h32m - 9h23m and you will get 5h 9m 0s - Press the calendar button to add and subtract days, hours, minutes and seconds to any date - Store answers in memory - Save reminders and calendar events just from within the app

About

Date.Time Calculator

Calculate date and time differences, intervals, and perform unit conversions with a pure calculator interface. Useful for determining future or past dates, calculating total time for multiple events, and converting between various time units and POSIX time.

Highlights
  • Date and time point calculations
  • Time interval calculations
  • Unit conversion of time
  • POSIX time interconversion
  • Time zone mutual conversion
  • Arithmetic operations with time
Features
Read full description

Date.Time Calculator lets you easily perform calculations involving dates, times, and time intervals, as well as convert between units of time โ€” all with the familiar feel of a calculator. Date.Time Calculator supports the following operations: * Basic arithmetic with numbers (integers and decimals) * Arithmetic with numbers and Time Intervals * Operations between Time Intervals (addition, subtraction, and division) * Operations between Time Intervals and Time Points (addition and subtraction) * Operations between Time Points (calculating the difference) * Conversion between units of time * Conversion to and from POSIX Time * Conversion between time zones Date.Time Calculator is especially useful for questions such as: * What date is 100 days from today? * What date and time was it 32,768 seconds ago? * If one lap takes 1 minute 32.6 seconds, how long will 62 laps take? * What time will it be after those 62 laps? * How many days have passed since January 23 of this year? * How many days are 100,000 seconds? * What date and time does POSIX Time 1234567890 represent? * What is the current time in POSIX Time? And with a little creativity, Date.Time Calculator can be useful in many other situations as well.

Screenshots

Time Calculator4 screens
Date.Time Calculator4 screens

Verdict

The call

The clearest difference is review sentiment: Time Calculator at 67% against Date.Time Calculator's 0%. Time Calculator also leads on update cadence (every 6 weeks vs every 5 months) and iOS requirement (12 vs 15.6). On price, ads, in-app purchases and monetization model there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Time Calculator costs $0.99 and Date.Time Calculator $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Time Calculator ships an update every 6 weeks, Date.Time Calculator every 5 months. The most recent releases landed on November 10, 2026 and November 1, 2026 respectively.

Scorecard3 real differences ยท 5 level
Time Calculator versus Date.Time Calculator: the parameters behind the verdict, then further details
ParameterTime CalculatorDate.Time Calculator
Price$0.99$0.99
Positive reviews66.7% of reviews โ€” better0.0% of reviews
Update frequencyEvery 6 weeks โ€” betterEvery 5 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPod โ€” betteriPhone, iPod
Requires iOS12 โ€” better15.6
Further details โ€” not scored
Size2 MB1 MB
Age rating4+4+
DeveloperTeofilo VizcainoNoriaki HASHIBA

Customer experience

Time Calculator

Written reviews21 reviews
Positive66.7%
Neutral9.5%
Negative23.8%

Date.Time Calculator

Written reviews1 reviews
Positive0.0%
Neutral100.0%
Negative0.0%

In-app purchases

None

Time Calculator

No in-app purchases

None

Date.Time Calculator

No in-app purchases

Questions

Is Time Calculator free?
Time Calculator costs $0.99, with no in-app purchases.
Is Date.Time Calculator free?
Date.Time Calculator costs $0.99, with no in-app purchases.
Do Time Calculator or Date.Time Calculator have ads?
Neither Time Calculator nor Date.Time Calculator shows ads.
Which is updated more often, Time Calculator or Date.Time Calculator?
Time Calculator ships an update every 6 weeks, and Date.Time Calculator every 5 months. Most recently, Time Calculator was updated on November 10, 2026 and Date.Time Calculator on November 1, 2026.

Other comparisons