Comparison

Date and time calc vs Date and Time Checker

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

Head to head
About

Date and time calc

Easily calculate the difference between dates or add/subtract time intervals. This utility app simplifies date and time arithmetic with straightforward operations.

Highlights
  • Date difference calculation
  • Date addition and subtraction
  • Time difference calculation
  • Time addition and subtraction
Features
Read full description

This is a convenient app that makes date and time calculations easy. With simple operation, you can quickly perform the calculations you need. # Features - Date difference calculation - Date addition and subtraction - Time difference calculation - Time addition and subtraction

About

Date and Time Checker

Easily calculate elapsed time, dates, and durations with multiple calculation formats. Save your results as a history for quick reference. Ideal for tracking work hours, travel time, or significant dates.

Highlights
  • Calculate elapsed time (hours, minutes, seconds)
  • Calculate elapsed dates (days, weeks, months, years)
  • Add or subtract time/dates
  • Set alert notifications for calculated times/dates
  • Save calculation results as history
  • Option to include/exclude first day in date calculations
Features
Read full description

"Date and Time Checker" is an application that can easily calculate the date, number of days, time, etc.Multiple calculation formats are available for various applications. The following calculation formats are available. 1. "End time - Start time" 2. "Specified time ± Elapsed time" 3. "End date - Start date" 4. "Specified date ± Elapsed date" 1. "End time - Start time" Calculate the elapsed time from the start time to the end time (hour / minute / second, etc.). It is also possible to exclude any time (minutes). 2. "Specified time ± Elapsed time" Calculate the elapsed time (later / ago) from the specified time. It is also possible to receive an alert notification at the calculated time. 3. "End date - Start date" Calculate the elapsed days (days / weeks / months / years, etc.) from the start date to the end date. You can choose to calculate the first day as 0 day or 1 day. 4. "Specified date ± Elapsed date" Calculate the elapsed date (later / ago) from the specified date. It is also possible to receive an alert notification on the calculated date. You can save the calculation results and check them as a history. 【Use cases of Date and Time Checker】 ・ Calculation of working hours ・ Calculation of overtime hours ・ Calculation of sleep time ・ Calculation of possible stay time ・ Calculation of work time ・ Calculation of waiting time ・ Back calculation of departure time ・ Calculation of travel time ・ Calculation of end time of abandoned game ・ Check how many days have passed since you were born ・ Calculate how many years have passed since you purchased ・etc Use the Date and Time Checker to quickly check the cumbersome date and days calculations.

Screenshots

Date and time calc4 screens
Date and Time Checker4 screens

Verdict

The call

The clearest difference is review sentiment: Date and Time Checker at 100% against Date and time calc's 29%. Date and Time Checker also leads on update cadence (every 3 months vs every 11 months). Date and time calc's advantage is in-app purchases (none vs 2). On price, ads, device support and iOS requirement 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

Both are free to download. Date and Time Checker sells 2 one-off in-app purchases. Date and time calc asks for nothing beyond the download.

UpkeepUpdate frequency

Date and time calc ships an update every 11 months, Date and Time Checker every 3 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

Scorecard4 real differences · 6 level
Date and time calc versus Date and Time Checker: the parameters behind the verdict, then further details
ParameterDate and time calcDate and Time Checker
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews28.6% of reviews100.0% of reviews — better
Number of ratings—1 — better
Update frequencyEvery 11 monthsEvery 3 months — better
AdsYesYes
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFree with in-app purchases
DevicesiPhoneiPhone
Requires iOS17.616.0 — better
Further details — not scored
Size6 MB29 MB
Age rating4+4+
DeveloperOsamu Ishigamimitsuhiro nara

Customer experience

Date and time calc

Written reviews14 reviews
Positive28.6%
Neutral14.3%
Negative57.1%

Date and Time Checker

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Date and time calc

No in-app purchases

2 purchases

Date and Time Checker

One-time2
  • Remove Ads$3.99
  • Export to File$3.99

Questions

Is Date and time calc free?
Date and time calc is free to download, with no in-app purchases.
Is Date and Time Checker free?
Date and Time Checker is free to download, with in-app purchases available.
Do Date and time calc or Date and Time Checker have ads?
Both Date and time calc and Date and Time Checker show ads.
Which is updated more often, Date and time calc or Date and Time Checker?
Date and time calc ships an update every 11 months, and Date and Time Checker every 3 months. Most recently, Date and time calc was updated on November 1, 2026 and Date and Time Checker on November 3, 2026.

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