227+ iOS apps curated and reviewed
Julian Date is the household name in astronomical date app, but it's far from the only option. We track 227+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 4.8★ (2.7K) | — | No | Jul 2026 |
| 2 |  | Free | 4.8★ (4K) | No | Yes | Jul 2026 |
| 3 |  | Free | 4.8★ (213K) | Yes | No | Jul 2026 |
| 4 |  | Free | 4.6★ (59K) | Yes | Yes | Jul 2026 |
| 5 |  | Free | 4.6★ (798) | No | Yes | Jul 2026 |
| 6 |  | Free | 4.7★ (9.1K) | Yes | No | Jul 2026 |
| 7 |  | Free | 4.6★ (15K) | No | Yes | Jul 2026 |
| 8 |  | Free | 4.7★ (688) | Yes | Yes | Jul 2026 |
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.
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.
Track time until or since important life events. Set custom timers for birthdays, holidays, anniversaries, and more. Personalize with your own photos and share progress with friends.
This app offers a streamlined calendar experience with beautiful, intuitive views of your schedule. It unifies events and reminders, allows for quick natural language event entry, and provides contact history. It supports major calendar services and offers premium features through subscription.
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.
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.
This app offers a visually appealing and intuitive way to manage your schedule. It integrates events, maps, contacts, and weather to help you plan your day efficiently. Features include timeline views, weather forecasts, travel time estimates, and customizable themes.
Effortlessly manage multiple time zones with this app. Convert times instantly, schedule events, and view global clocks at a glance with interactive widgets. Features atomic accuracy and a vast database of locations.
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.
This app helps you manage your busy schedule with a user-friendly interface. Easily track daily, weekly, monthly, and yearly views, and color-code your events for better organization. It syncs with popular accounts and offers productivity tools for efficient event management.
This app provides a lunar calendar to track Islamic events and festivals. It offers date conversion between Hijri and Gregorian calendars, displays moon phases, and automatically adjusts the Hijri day. The interface supports both English and Arabic.
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.
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.
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.
Easily check the current time and date in any location worldwide directly from your device's Notification Center. This app is ideal for international communication, travel planning, and staying connected with loved ones across different time zones.
Get the most accurate time from an official atomic clock server. This app automatically detects your time zone and allows custom backgrounds. Easily switch between digital and analog clock displays with a swipe.
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.
This comprehensive toolkit helps manage time, dates, and schedules with various calculators. Track work hours, plan shifts, convert time formats, and calculate differences between dates. Ideal for professionals, freelancers, and everyday users needing precise time management.
This intuitive calendar app integrates with all your existing calendars, offering powerful tools for event creation and management. It provides multiple viewing options and offline capabilities, ensuring you never miss an appointment.
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.