Best Date Converter Tool Apps

0+ iOS apps curated and reviewed

4.7 avg rating
18 free apps
Updated July 2026

The best date converter tool apps on iPhone average 4.7★ across 0+ titles — we've ranked them by what real users actually keep on their phones. Updated July 2026.

Compare top Date Converter Tool Apps (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Metric Conversion toolMetric Conversion toolFree4.8★ (15K)NoNoAug 2026
2Mila's Unit Converter PROMila's Unit Converter PRO$9.99 was $29.994.8★ (997)NoNoAug 2026
3Unit Converter - Best Unit AppUnit Converter - Best Unit AppFree4.8★ (192K)YesYesAug 2026
4Hijri Cal التقويم الهجريHijri Cal التقويم الهجريFree4.6★ (798)NoYesAug 2026
5Unit Converter - Pro Units AppUnit Converter - Pro Units AppFree4.6★ (16K)NoYesAug 2026
6Julian DateJulian DateFree4.8★ (2.7K)NoAug 2026
7Conversion Calculator PlusConversion Calculator PlusFree4.7★ (15K)YesYesAug 2026
8Currency ConverterCurrency ConverterFree3.0★ (87)NoNoAug 2026

Top Picks for Date Converter Tool

Metric Conversion tool#1

Metric Conversion tool by Wight Hat

Unit and currency converter
Editor's Choice
🔍 Reference
4.8😐(15K ratings)
Free
Metric Conversion tool screenshot 1
Metric Conversion tool screenshot 2
Metric Conversion tool screenshot 3
Metric Conversion tool screenshot 4
Metric Conversion tool screenshot 5

This app provides a comprehensive unit and currency converter with a user-friendly interface. It offers offline functionality, supports over 30,000 unit conversions, and includes more than 160 currencies with live exchange rates. Users can save favorite conversions and get precise results.

What We Love

  • 💡 Useful conversion tool
  • 👍 Easy to use and navigate
  • 🚀 Quick and efficient
  • 👍 Comprehensive coverage of conversions

Room to Improve

  • 🔊 Intrusive and loud ads
  • 🔒 Questionable privacy practices
  • 🐛 Inaccurate conversions
Mila's Unit Converter PRO#2

Mila's Unit Converter PRO by Scott DeSapio

Ultimate conversion calculator
Strong Contender
🔧 Utilities
4.8(997 ratings)
$9.99
Mila's Unit Converter PRO screenshot 1
Mila's Unit Converter PRO screenshot 2
Mila's Unit Converter PRO screenshot 3
Mila's Unit Converter PRO screenshot 4
Mila's Unit Converter PRO screenshot 5
Mila's Unit Converter PRO screenshot 6

Effortlessly convert between hundreds of units across 26 essential categories with this precision calculator. Designed for speed and simplicity, it offers accurate results in seconds for students, professionals, and travelers alike. Enjoy offline functionality and a customizable experience.

Unit Converter - Best Unit App#3

Unit Converter - Best Unit App by Alan Mrvica

Convert All Units and Currency
Worth Considering
✈️ Travel
4.8😊(192K ratings)
FreeAdsIn-App Purchases
#75in Travel
Unit Converter - Best Unit App screenshot 1
Unit Converter - Best Unit App screenshot 2
Unit Converter - Best Unit App screenshot 3
Unit Converter - Best Unit App screenshot 4
Unit Converter - Best Unit App screenshot 5
Unit Converter - Best Unit App screenshot 6

Easily convert between a wide range of units across 20 categories, including length, weight, temperature, and more. Features live currency updates for 155 world currencies, refreshed daily. Designed for simplicity and visual appeal.

What We Love

  • 🚀 Easy to use
  • 👍 Comprehensive conversions
  • 💡 Useful for travel and cooking
  • 🚀 Quick and efficient

Room to Improve

  • 🐛 Limited character input
  • 🐛 Difficulty with negative numbers
  • 💡 Lack of ability to quickly switch between conversions

More Date Converter Tool apps to explore

4
Hijri Cal التقويم الهجري
Hijri Cal التقويم الهجري
Hijri Cal التقويم الهجري
Hijri Converter, Simplified!
Free

Easily convert between Gregorian and Hijri dates with this utility app. It offers a widget for quick conversions, time travel calculations between dates, and support for Islamic events. Users can also adjust the Hijri date and receive daily reminders.

Gregorian to Hijri converterHijri to Gregorian converterFunctional widget for on-the-go conversion
📊 Productivity
(798)
free with in-app purchases
5
Unit Converter - Pro Units App
Unit Converter - Pro Units App
Unit Converter - Pro Units App
Convert Any Unit
Free

This app offers a powerful and user-friendly unit converter with 16 categories, including currency, length, and temperature. It allows for custom unit lists and provides live exchange rate updates for 148 currencies. Unlock all features with a one-time in-app purchase.

16 conversion categoriesCustom unit listsLive currency exchange rates
🔍 Reference
(16K)
free with in-app purchases
6
Julian Date
Julian Date
Julian Date
by Jevon Charles
Free

Convert between standard calendar dates and Julian dates. Supports 5-digit and full Julian date formats, including time. Also allows conversion from Julian dates back to calendar dates.

5 Digit Julian Date conversionFull Julian Date conversionCalendar Date to Julian Date
📊 Productivity
(2.7K)
paid
7
Conversion Calculator Plus
Conversion Calculator Plus
Conversion Calculator Plus
Units, Currency & Crypto
Free

This app is a versatile unit and currency converter with a user-friendly interface. It supports a wide range of conversion categories, including real-world and crypto currencies, with automatic exchange rate updates. Customize your experience with design options, dark mode, and adjustable home screen layouts.

Unit and currency conversionSupports 160+ currencies (real & crypto)Automatic currency exchange rate updates
📊 Productivity
(15K)
free with in-app purchases
8
Currency Converter
Currency Converter
Currency Converter
Reliable Exchange Rates
Free

Instantly convert over 300 currencies, metals, and cryptocurrencies with real-time exchange rates. Access reliable data and advanced analysis tools to understand currency fluctuations and approximate bank rates.

Convert 300+ currencies, metals, cryptocurrenciesReal-time exchange ratesReliable OANDA Rates
💼 Business
(87)
free
9
Convert Any Unit Lite
Convert Any Unit Lite
Convert Any Unit Lite
Units & Currency Converter
Free

Quickly convert between thousands of units with an intelligent search and autocomplete feature. This app offers a streamlined interface, an integrated calculator, and the ability to save favorite conversions. It supports over 6,400 units across 51 categories, making it a comprehensive tool for all your conversion needs.

Intelligent unit search with autocompleteAutomatic category selectionIntegrated calculator
✈️ Travel
(48K)
ad-supported
10
Currency converter calculator!
Currency converter calculator!
Currency converter calculator!
Exchange rates USD
Free

This app provides real-time exchange rates for all world currencies, including cryptocurrencies, and functions offline. It features an embedded calculator, the ability to set custom rates, and updates hourly. An optional premium version removes ads and offers additional features.

All world currenciesOffline functionalityCryptocurrency support
✈️ Travel
(70K)
free with in-app purchases
11
Date Converter (تبدیل تاریخ)
Date Converter (تبدیل تاریخ)
Date Converter (تبدیل تاریخ)
Gregorian, Shamsi, Qamari
Free

Easily convert dates between Gregorian, Shamsi, and Qamari calendars. This app displays important occasions, supports local languages, and offers offline functionality. Share dates and receive notifications.

Gregorian, Shamsi, Qamari date conversionDisplays occasionsLocal language support
🔧 Utilities
(2)
free
12
Currency Converter ‧
Currency Converter ‧
Currency Converter ‧
Money conversion exchange rate
Free

Easily convert money between over 160 currencies with real-time exchange rates, even offline. Track historical data and use built-in calculator functions for seamless travel finances.

Currency conversionOffline modeHistorical charts
✈️ Travel
(4.4K)
free with in-app purchases
13
Converter+ (Units, Currencies)
Converter+ (Units, Currencies)
Converter+ (Units, Currencies)
Unit and Currency Converter
Free

This app offers a comprehensive unit and currency converter with a vast array of categories and calculators for everyday needs. It allows users to customize templates, download shared ones, and provides automatic exchange rate updates for 167 world currencies.

Extensive unit and currency conversionMultiple calculators (mortgage, loan, tip)Customizable and downloadable templates
📊 Productivity
(2.4K)
free with in-app purchases
14
Unit Converter: Mila's Tools
Unit Converter: Mila's Tools
Unit Converter: Mila's Tools
Conversion Calculator PLUS
Free

This app offers a comprehensive unit conversion tool with over 300 units across 27 categories. It supports compound units, date calculations, and conversions between various number systems, including historical units. The interface is designed for ease of use with smart keyboards and customizable display options.

27 conversion categories300+ unitsCompound unit support
🔧 Utilities
(1.4K)
free with in-app purchases
15
Julian - Quick Dates
Julian - Quick Dates
Julian - Quick Dates
Julian dates at a glance
Free

This app provides a quick and efficient way to view and convert between 11 different types of dates, including standard Julian dates, Mars Sol dates, and Unix time. It features a calendar for easy navigation and allows copying dates to the clipboard. The current date can be displayed on the app icon and Apple Watch complications.

11 date type conversionsCalendar viewCopy to clipboard
🔧 Utilities
(4K)
free with in-app purchases
16
Convert Date
Convert Date
Convert Date
by Fahad Alrashidi
Free

Easily convert dates between various calendar systems including Islamic, Gregorian, Hebrew, and more. Calculate age and access a history of your conversions. Share results as images.

Multiple calendar conversionsAge calculationConversion history
🔧 Utilities
(12)
free with in-app purchases
17
Convertible: Unit Converter
Convertible: Unit Converter
Convertible: Unit Converter
Currency and Unit Converter
Free

This app offers a comprehensive unit and currency conversion tool with a visually appealing interface and extensive unit options. It supports standard and non-standard units, compound conversions, and fraction input, making it versatile for various needs.

Extensive standard and non-standard unit conversionsCurrency conversion with 161 currenciesCompound unit conversion
🔧 Utilities
(97)
paid
18
Military Time Converter +
Military Time Converter +
Military Time Converter +
24 Hour Clock App & Widget
Free

Easily convert between 12-hour (AM/PM) and 24-hour military time. This app offers instant conversions, local time display, time zone support, and convenient widgets. Learn and practice military time with a built-in chart.

Instant 12/24 hour conversionLocal time displayTime zone and UTC support
🔧 Utilities
(312)
free with in-app purchases
19
Time Query and Converter
Time Query and Converter
Time Query and Converter
Smart Timezone&Timestamp Tools
Free
🔧 Utilities
(0)
20
Time + Date Calculator
Time + Date Calculator
Time + Date Calculator
Best tool to work with time
$0.99

Calculate time differences, work days, and add or subtract time periods. Convert between units like seconds, minutes, and years. Determine future or past dates and calculate age.

Calculate time differencesCalculate work daysAdd/subtract time
🔧 Utilities
(944)
free

FAQ about Date Converter Tool

What are the best date converter tool apps for iPhone?
Metric Conversion tool tops our date converter tool apps ranking as of July 2026, with a 4.8-star average from 15K App Store ratings, and it's free to download.
Yes — 18 of the top date converter tool apps we rank are free to download, including Metric Conversion tool and Unit Converter - Best Unit App.
Metric Conversion tool has no ads and has no in-app purchases, according to its App Store listing as of July 2026.
The app is a comprehensive unit and currency converter. It allows users to convert between a vast number of units, including weight, temperature, length, area, volume, speed, time, angle, pressure, and currency. It aims to provide accurate conversion results with a user-friendly interface.
Key features include an easy-to-use interface, offline functionality, support for over 30,000 unit conversions, and over 160 currencies with live exchange rates. It also allows users to store favorite conversions for quick access and provides answers in fractions where needed, with results up to 5 decimal places.