# JulianCal — Julian Day & Batch Codes > Julian Day & Batch Codes (iPhone/iPad app by Matteo Masin.) - Source: https://appshunter.io/ios/app/juliancal/id6757821490 (this page in markdown: same URL + `.md`) - Developer: [Matteo Masin](https://appshunter.io/developer/1869119076) - Category: Utilities, Productivity - Price: Free with in-app purchases - Age rating: 4+ - Requires: iOS 15.0 · 38 MB - Languages: American English - Released: 2026-01-16 - Data updated: 2026-08-14 - User reviews in markdown: https://appshunter.io/ios/app/juliancal/id6757821490/reviews.md ## What is JulianCal? JulianCal is the ultimate app for calculating and displaying the Julian Day of the year, an essential tool for production, logistics, and batch tracking. KEY FEATURES Real-time Julian Day • Display Julian Day of the year (1-365/366) • Automatic updates every minute • Leap year indication Customizable Batch Code • Generate automatic batch codes with custom prefix • 2 or 3-digit format for Julian Day • One-tap copy to clipboard Julian Day → Date Converter • Convert instantly from Julian Day to calendar date • Support for years 1900-2100 • Detailed info: day of week, week number, quarter Interactive Calendar • View calendar with Julian Day for each date • Select any date to see details • Switch between monthly and weekly view Year Progress • Visualize percentage of year passed • Animated progress bar • Days remaining until year end Statistics & Information • Week number of the year • Current quarter (Q1-Q4) • Days remaining in current year • Julian Day Number (since January 1, 4713 BC) USE CASES Production & Manufacturing: Product tracking and batch codes Logistics: Shipment organization and expiry dates Agriculture: Harvest planning and crop cycles Project Management: Working days and deadlines Science & Research: Astronomical calculations FEATURES • Modern and intuitive interface • Automatic light and dark theme • Works offline • Quick copy to clipboard • Full Italian and English support • Lightweight and fast • Free app with discreet ads PERFECT FOR • Production managers • Logistics operators • Project managers • Farmers and gardeners • Researchers and students • Anyone needing quick Julian Day calculations Download JulianCal now and simplify your work with Julian Days! ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | JulianCal Pro | $2.99 | one-time | ## Version history (last 5 releases) ### 1.5.0 — 2026-08-05 What's new in 1.5.0: • Home Screen widgets! Add the Julian Day, the date and the batch code right on your Home Screen, in several resizable sizes. • New week-number widget. • App icon badge: see the Julian day or the week number at a glance (enable it in Settings). • The number updates automatically at midnight, in your phone's time zone. • Improved widget design: large, centered number. • Various fixes and stability improvements. ### 1.4.1 — 2026-08-05 • New: JulianCal Pro — remove ads forever with a one-time purchase • Batch Code tools: decoder, custom templates, year digit and CSV export • Customizable Pro color themes • GDPR privacy consent for ads in Europe • Now available in 26 languages • Time zone / DST fixes and automatic refresh at midnight • Initial onboarding and improved stability • Updated app icon ### 1.3.0 — 2026-01-25 Redesigned interface + 4 new languages (Bengali, Malay, Filipino, Amharic)! Now supporting 27 languages worldwide. Download now! ### 1.2.0 — 2026-01-23 What's New in v1.2.0: NEW DESIGN Completely redesigned home screen with modern layout Renewed calendar screen for better readability Dark mode visual improvements 4 NEW LANGUAGES Bengali - Bangladesh Malay (Bahasa Melayu) - Malaysia Filipino - Philippines Amharic Now supporting 27 languages total! IMPROVEMENTS Reorganized widgets for faster information access Smoother animations Various bug fixes ### 1.1.3 — 2026-01-16 No release notes. ## Apps similar to JulianCal | App | Rating | Price | Category | | --- | --- | --- | --- | | [Boeing 787 Training Guide PRO](https://appshunter.io/ios/app/boeing-787-training-guide-pro/id1611213369) | 5.0 (4) | $24.99 | Utilities | | [Calendar : 4500 BC to 4500 AD](https://appshunter.io/ios/app/calendar-4500-bc-to-4500-ad/id1384298291) | 5.0 (2) | $1.99 | Utilities | | [Sort Your Numbers](https://appshunter.io/ios/app/sort-your-numbers/id6749580138) | — | Free | Utilities | | [Military time clock converter](https://appshunter.io/ios/app/military-time-clock-converter/id6744957491) | — | Free | Utilities | | [HUBFARM](https://appshunter.io/ios/app/hubfarm/id6450309559) | — | Free | Utilities | | [Citizen Central](https://appshunter.io/ios/app/citizen-central/id6475014009) | — | Free | Utilities | ## More apps by Matteo Masin - [AdLens](https://appshunter.io/ios/app/adlens/id6758112689) All apps by Matteo Masin: https://appshunter.io/developer/1869119076 ## Related topics [julian date converter](https://appshunter.io/ios/topics/julian-date-converter) · [julian date calendar](https://appshunter.io/ios/topics/julian-date-calendar) · [julian date](https://appshunter.io/ios/topics/julian-date) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-14.*