Best Date Calculation Assistant Apps

239+ iOS apps curated and reviewed

4.3 avg rating
18 free apps
Updated November 2026

Every iPhone needs a few good date calculation assistant apps. We benchmark 239+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.

Compare top Date Calculation Assistant Apps (November 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Date Calculation AssistantDate Calculation AssistantFreeβ€”NoYesJun 2026
2Date and Time CalculatorDate and Time CalculatorFree4.7β˜… (9.9K)YesNoNov 2026
3Time & Date CalculatorTime & Date CalculatorFree3.4β˜… (68)NoYesOct 2026
4Date + Days CalculatorDate + Days CalculatorFree3.0β˜… (3)NoNoMay 2026
5DayFinder - Date CalculatorDayFinder - Date CalculatorFreeβ€”YesNoNov 2026
6Date Calculator, Days CalcDate Calculator, Days CalcFree4.5β˜… (131)NoYesNov 2026
7Date and Time Calculator ProDate and Time Calculator Pro$0.994.8β˜… (961)NoNoNov 2026
8Date & Time Calculator CounterDate & Time Calculator CounterFree4.6β˜… (28)YesNoOct 2026

Top Picks for Date Calculation Assistant

4.7😐(9.9K ratings)
FreeAds
Date and Time Calculator screenshot 1
Date and Time Calculator screenshot 2
Date and Time Calculator screenshot 3

Calculate the exact number of days, hours, and seconds between any two dates. This tool also allows you to find the date before or after a specified period, making it useful for tracking deadlines, events, or financial products.

What We Love

  • πŸ’‘ Helpful for tracking dates and time
  • πŸ‘ Simple and easy to use
  • πŸš€ Accurate calculations
  • πŸš€ Useful for various purposes (medication management, work timelines, etc.)

Room to Improve

  • πŸ› Ads are intrusive and difficult to close
  • πŸ› Compatibility issues on iPad
  • πŸ› Bugs with date/time calculations
  • πŸ› Language issues with ads
Time & Date Calculator#3

Time & Date Calculator by timeanddate.com

Perform calculations with time
Worth Considering
πŸ”§ Utilities
3.4😐(68 ratings)
FreeIn-App Purchases
Time & Date Calculator screenshot 1
Time & Date Calculator screenshot 2
Time & Date Calculator screenshot 3
Time & Date Calculator screenshot 4
Time & Date Calculator screenshot 5

Calculate exact durations between times, including seconds, and account for time zone differences and DST. View results in various units and share them easily. Supports a wide year range.

What We Love

  • πŸ‘ Simple and easy to use
  • βœ… Does what it says it does
  • πŸš€ Fast and efficient
  • πŸ‘Œ Great for date calculations
  • ✨ Useful for medication tracking
  • 🌟 Powerful online version

Room to Improve

  • πŸ› App crashes frequently
  • ❌ Settings toggles not working
  • 🚫 Missing website features
  • ⏳ Outdated app
  • πŸ’Έ Expensive for limited features
  • πŸ“‰ Poor UI design

More Date Calculation Assistant apps to explore

FAQ about Date Calculation Assistant

Are there free date calculation assistant apps for iPhone?
Yes β€” 18 of the top date calculation assistant apps we rank are free to download, including Date Calculation Assistant and Date and Time Calculator.
Date Calculation Assistant has no ads and offers in-app purchases, according to its App Store listing as of November 2026.
We track 239+ date calculation assistant apps on the iOS App Store as of November 2026, ranked by rating, recency, and analysis of real user reviews.