Best Calendar Calculator Free Apps

250+ iOS apps curated and reviewed

4.2 avg rating
20 free apps
Updated November 2026

Looking for free calendar calculator free apps? 20 of our 250+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Compare top Calendar Calculator Free Apps (November 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Date and Time CalculatorDate and Time CalculatorFree4.7★ (9.9K)YesNoNov 2026
2Date Calendar CalculatorDate Calendar CalculatorFree4.8★ (31)YesYesOct 2026
3Time & Date CalculatorTime & Date CalculatorFree3.4★ (68)NoYesOct 2026
4Calendar Calculator FreeCalendar Calculator FreeFree1.0★ (1)NoNoMay 2026
5The Date Calculator PROThe Date Calculator PROFree4.7★ (2.6K)YesYesNov 2026
6Time Calculator - Work HoursTime Calculator - Work HoursFree4.7★ (3K)NoYesNov 2026
7DayFinder - Date CalculatorDayFinder - Date CalculatorFree—YesNoNov 2026
8Calendar App- Schedule PlannerCalendar App- Schedule PlannerFree—NoNoNov 2026

Top Picks for Calendar Calculator Free

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

  • 💡 Helpful for tracking dates and time
  • 👍 Simple and easy to use
  • 🚀 Accurate calculations
  • 🚀 Useful for various purposes (medication management, work timelines, etc.)

Room to Improve

  • 🐛 Ads are intrusive and difficult to close
  • 🐛 Compatibility issues on iPad
  • 🐛 Bugs with date/time calculations
  • 🐛 Language issues with ads
Date Calendar Calculator#2

Date Calendar Calculator by Yuno Solutions Sdn Bhd

Calculate Calendar Date & Time
Strong Contender
🔧 Utilities
4.8(31 ratings)
FreeAdsIn-App Purchases
Date Calendar Calculator screenshot 1
Date Calendar Calculator screenshot 2
Date Calendar Calculator screenshot 3
Date Calendar Calculator screenshot 4
Date Calendar Calculator screenshot 5
Date Calendar Calculator screenshot 6

This app helps you calculate date and time durations, add or subtract time from dates, and determine working days. It also converts between calendars and time zones, and estimates ovulation and pregnancy due dates. The design is simple and intuitive.

Time & Date Calculator#3

Time & Date Calculator by timeanddate.com

Perform calculations with time
Worth Considering
🔧 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

  • 👍 Simple and easy to use
  • ✅ Does what it says it does
  • 🚀 Fast and efficient
  • 👌 Great for date calculations
  • ✨ Useful for medication tracking
  • 🌟 Powerful online version

Room to Improve

  • 🐛 App crashes frequently
  • ❌ Settings toggles not working
  • 🚫 Missing website features
  • ⏳ Outdated app
  • 💸 Expensive for limited features
  • 📉 Poor UI design

More Calendar Calculator Free apps to explore

FAQ about Calendar Calculator Free

What are the best calendar calculator free apps for iPhone?
Date and Time Calculator tops our calendar calculator free apps ranking as of November 2026, with a 4.7-star average from 9.9K App Store ratings, and it's free to download.
Date and Time Calculator shows ads and has no in-app purchases, according to its App Store listing as of November 2026.
We track 250+ calendar calculator free apps on the iOS App Store as of November 2026, ranked by rating, recency, and analysis of real user reviews.