Best Julian Date Converter And Viewer Apps

211+ iOS apps curated and reviewed

4.6 avg rating
16 free apps
Updated July 2026

The best julian date converter and viewer apps on iPhone average 4.6β˜… across 211+ titles β€” we've ranked them by what real users actually keep on their phones. Updated July 2026.

Compare top Julian Date Converter And Viewer Apps (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Julian - Quick DatesJulian - Quick DatesFree4.8β˜… (4K)NoYesJul 2026
2Julian DateJulian DateFree4.8β˜… (2.7K)β€”NoJul 2026
3JulianatorJulianator$0.99 was $1.994.7β˜… (105)NoNoJul 2026
4Unit Converter - Best Unit AppUnit Converter - Best Unit AppFree4.8β˜… (172K)YesYesJul 2026
5365 Days Calendar365 Days Calendar$1.994.7β˜… (23)NoNoJul 2026
6JulianCalJulianCalFreeβ€”NoNoMay 2026
7Julian CalendarJulian Calendar$1.994.7β˜… (47)NoNoJun 2026
8Julian ClockJulian Clock$0.994.9β˜… (15)NoNoJul 2026

Top Picks for Julian Date Converter And Viewer

Julian - Quick Dates#1

Julian - Quick Dates by Juan Carlos Perez

Julian dates at a glance
Editor's Choice
πŸ”§ Utilities
4.8😊(4K ratings)
FreeIn-App Purchases
Julian - Quick Dates screenshot 1
Julian - Quick Dates screenshot 2
Julian - Quick Dates screenshot 3
Julian - Quick Dates screenshot 4

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.

What We Love

  • πŸš€ Excellent for work/professional use
  • πŸ‘ Simple and easy to use
  • πŸ‘ Helpful for daily tasks
  • πŸ‘ Convenient complication on Apple Watch

Room to Improve

  • πŸ› Complication issues on Apple Watch (not updating, getting stuck)
  • πŸ› Date discrepancies between app and complication
  • πŸ› App not functioning properly after updates
Julian Date#2

Julian Date by Jevon Charles

Strong Contender
πŸ“Š Productivity
4.8😊(2.7K ratings)
FreeIn-App Purchases
Julian Date screenshot 1
Julian Date screenshot 2
Julian Date screenshot 3

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.

What We Love

  • πŸš€ Best Julian Date App
  • πŸ‘ Great
  • πŸ‘ Love this APP
  • πŸ‘ Military

Room to Improve

  • πŸ€” Could be improved
  • πŸ€” Good but...
  • πŸ€” Good app
Julianator#3

Julianator by Bright Day Digital LLC

Julian Day of Year Calculator
Worth Considering
πŸ”§ Utilities
4.7(105 ratings)
$0.99
Julianator screenshot 1
Julianator screenshot 2
Julianator screenshot 3
Julianator screenshot 4
Julianator screenshot 5
Julianator screenshot 6

Easily convert dates between the Gregorian calendar and the Julian Day of Year (ordinal date). This tool is useful for systems that use day-of-year numbering, such as mainframes, military, and food industries. It offers a clean interface, monthly views, and widgets for quick access.

More Julian Date Converter And Viewer apps to explore

4
Unit Converter - Best Unit App
Unit Converter - Best Unit App
Unit Converter - Best Unit App
Convert All Units and Currency
Free

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.

20 conversion categoriesLive currency updates155 world currencies
✈️ Travel
(172K)
free with in-app purchases
5
365 Days Calendar
365 Days Calendar
365 Days Calendar
Julian & day tracker
$1.99

This utility app converts between Julian and Gregorian dates and tracks Julian Day Numbers. It's designed for users in fields like astronomy, military operations, and historical research who need precise date management for daily operations.

Julian to Gregorian date conversionGregorian to Julian date conversionJulian Day Number tracking
πŸ”§ Utilities
(23)
paid
6
JulianCal
JulianCal
JulianCal
Julian Day & Batch Codes
Free
πŸ”§ Utilities
(0)
7
Julian Calendar
Julian Calendar
Julian Calendar
Date Converter, Day Calculator
$1.99

View various Julian Calendar dates, including short, long, and reduced Julian Dates. Supports Lock Screen and Home Screen widgets for easy access to date conversions and calculations.

View Short Julian Calendar DateView Long Julian Calendar DateView Julian Date
πŸ“š Education
(47)
paid
8
Julian Clock
Julian Clock
Julian Clock
by Adam Allard
$0.99

This utility app displays the current Julian Date, time with seconds, military date format, day of the week, and Zulu time (GMT). It's designed for quick access to essential timekeeping information.

Julian Date displayReal-time clock with secondsMilitary date format
πŸ”§ Utilities
(15)
paid
9
Metric Conversion tool
Metric Conversion tool
Metric Conversion tool
Unit and currency converter
Free

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.

Offline functionalityOver 30,000 unit conversions160+ currencies with live rates
πŸ” Reference
(15K)
free
10
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
πŸ’Ό Business
(69)
free
11
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
πŸ”§ Utilities
(97)
paid
12
Conversion Calculator Plus
Conversion Calculator Plus
Conversion Calculator Plus
Unit Converter
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
πŸ“Š Productivity
(15K)
free with in-app purchases
13
Hijri Cal Ψ§Ω„ΨͺΩ‚ΩˆΩŠΩ… Ψ§Ω„Ω‡Ψ¬Ψ±ΩŠ
Hijri Cal Ψ§Ω„ΨͺΩ‚ΩˆΩŠΩ… Ψ§Ω„Ω‡Ψ¬Ψ±ΩŠ
Hijri Cal Ψ§Ω„ΨͺΩ‚ΩˆΩŠΩ… Ψ§Ω„Ω‡Ψ¬Ψ±ΩŠ
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
πŸ“Š Productivity
(798)
free with in-app purchases
14
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
(47K)
ad-supported
15
Ethiopian Calendar & Converter
Ethiopian Calendar & Converter
Ethiopian Calendar & Converter
Holidays, Reminders, Prayers
Free

This app provides a comprehensive Ethiopian calendar, including Orthodox holidays, fasting days, and national events. It features a date converter, time zone adjustments, and reminders for birthdays and significant dates. Additional utilities like a calculator, notes, and world clock enhance its functionality.

Ethiopian Orthodox holidays and fasting daysDate and time converter (Ethiopian to local/vice versa)Birthday and event reminders
πŸ“Š Productivity
(3.9K)
free
16
Unit Converter HD.
Unit Converter HD.
Unit Converter HD.
30 categories, 700+ units
Free

Easily convert over 700 units across 30 categories with this powerful tool. It offers a user-friendly interface, dark mode support, and a backspace key for quick corrections. Save time on all your measurement conversion needs.

700+ Units of Measure30 Conversion CategoriesEasy-to-Use Interface
πŸ”§ Utilities
(642)
free with in-app purchases
17
myConvert Lite
myConvert Lite
myConvert Lite
Currency and units converter
Free

Convert currencies and units quickly and efficiently on a single screen. This free version offers essential conversion tools with a built-in calculator and natural language search. Upgrade to the full version for expanded unit options and an ad-free experience.

Multiple results displayed simultaneouslyIntegrated calculator keyboardHandles complex unit conversions
πŸ” Reference
(4)
free with in-app purchases
18
Converter-Universal Conversion
Converter-Universal Conversion
Converter-Universal Conversion
by Trelleborg Sealing Solutions
Free

This app offers a comprehensive unit and hardness conversion tool with an easy-to-use interface. It includes currency conversion with updated exchange rates, over 300 engineering and scientific units, and a specialized hardness converter. Additional features like timezone conversion, pace calculation, and a standard calculator enhance its utility.

Currency converter with live exchange ratesOver 300 engineering and scientific unitsSpecialized hardness converter
πŸ”§ Utilities
(897)
free
19
Currency & Unit Converter #
Currency & Unit Converter #
Currency & Unit Converter #
Scientific Unit Converter
Free

This app offers a comprehensive solution for converting units across more than 20 common categories, including over 400 units. It supports mixed units and currency exchange with real-time updates, making it useful for work, study, and daily life. The app features a scientific calculator and a user-friendly interface.

20+ Categories & 400+ UnitsMixed-Unit SupportCurrency Exchange
πŸ”§ Utilities
(217)
free
20
JPEG-PNG Image file converter
JPEG-PNG Image file converter
JPEG-PNG Image file converter
Format convertor to JPEG, PNG
Free

Easily convert your images to JPEG or PNG format. This lightweight application supports a wide range of input formats, including HEIF/HEIC, and saves converted files directly to your device's Photos app. It's ideal for preparing images for printing or ensuring compatibility.

Convert to JPEG or PNGSupports HEIF/HEIC conversionSaves to Photos app
πŸ“· Photo & Video
(17K)
ad-supported

FAQ about Julian Date Converter And Viewer

What are the best julian date converter and viewer apps for iPhone?
Julian - Quick Dates tops our julian date converter and viewer apps ranking as of July 2026, with a 4.8-star average from 4K App Store ratings, and it's free to download.
Yes β€” 16 of the top julian date converter and viewer apps we rank are free to download, including Julian - Quick Dates and Julian Date.
Julian - Quick Dates has no ads and offers in-app purchases, according to its App Store listing as of July 2026.
We track 211+ julian date converter and viewer apps on the iOS App Store as of July 2026, ranked by rating, recency, and analysis of real user reviews.
Julian is a utility app that allows you to view and convert between 11 different types of dates. These include various Julian date formats, Mars Sol Date, Rata Die, and Unix Time. It also offers a calendar for easy date navigation and the ability to copy dates to your clipboard.
Key features include support for 11 distinct date types, a calendar for browsing dates, one-tap copying of dates to the clipboard, displaying the current date on the app icon via the badge number, and Apple Watch complications for at-a-glance date viewing.