Julian Clock vs Julian
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Julian Clock
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 display
- Real-time clock with seconds
- Military date format
- Day of the week
- ZULU time (GMT)
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It's as simple as it gets, a Julian date and clock app built for people who need the numbers fast. Julian Clock shows everything you need at a glance: • Julian date (YJJJ or YYDDD, your choice in Settings) • Local time with running seconds • Date in military format (e.g. 19JUN26) • Day of the week • Zulu time (GMT) New in version 2 • Home Screen widgets — small and medium layouts with Julian date, Zulu, and military date • Lock Screen widgets — circular, rectangular, and inline at-a-glance views • Apple Watch app — Julian date and Zulu on your wrist, plus complications • iPad support — universal layout for desk and EFB use • Historical lookup — pick any date on the calendar to get its Julian day • Eight themes — Navy, Air Force, Army, Marines, Coast Guard, Space Force, Dark, and Light Widgets and the Watch app stay in sync with your format and theme choices. This app is for military and DOD personnel who constantly need a quick look at the Julian date and/or Zulu time, on the phone, on the lock screen, on the watch, or on an iPad beside the job.
Julian
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 conversions
- Calendar view
- Copy to clipboard
- App icon badge display
- Apple Watch complications
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Julian makes it simple to find any day of the year, convert dates, and understand your year at a glance on iPhone, iPad, and Apple Watch. Browse the calendar to explore past and future dates, or enter a day number to jump straight to the matching date. Choose the date format you prefer and instantly see the day of the year, year progress, days remaining, week number, and current quarter. Convert between calendar dates, ordinal dates, ISO 8601 dates, ISO week dates, Julian calendar dates, Julian Day Numbers, and Unix timestamps. Add or subtract days, weeks, months, or years, or calculate the exact time between two dates. Julian supports a wide range of astronomical and time counting systems, including CCSDS Julian Date, CNES Julian Date, Dublin Julian Date, Lilian Date, Mars Sol Date, Modified Julian Date, Rata Die, Reduced Julian Date, Truncated Julian Date, and Unix Time. Copy any date value with a tap, or copy and share a complete date summary. Save your favorite formats for fast access whenever you need them. Keep important date information visible with Home Screen and Lock Screen widgets. Customize their layout, colors, and content. Larger widgets can show additional date values and calendar views without opening the app. On Apple Watch, quickly view yesterday, today, and tomorrow, look up any day of the year, and choose complications that match your watch face. Use Siri to retrieve date values and check your year progress. Add Julian actions to Shortcuts to convert dates, perform calculations, copy results, and open detailed date information. Personalize Julian with seven color themes, alternate app icons, and System, Light, or Dark appearance. Set your preferred first day of the week and choose which month begins your first quarter. For an instant glance, enable the optional app icon badge to show the current day of the year. Badge updates are silent and do not create banners or sounds. Notification permission is required.
Screenshots
Verdict
The clearest difference is price: Julian at Free against Julian Clock's $0.99. Julian also leads on update cadence (every 2 months vs every 69 months) and ratings volume (4.6K vs 15). Julian Clock's advantage is in-app purchases (none vs 3) and review sentiment (100% vs 65%). On rating, ads, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Julian is free to download; Julian Clock costs $0.99 up front. Julian sells 3 one-off in-app purchases. Julian Clock asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.9 for Julian Clock against 4.8 for Julian. That said, the two scores are not equally well evidenced: Julian has 4.6K ratings behind it against 15, so its average is the more settled of the two. Written reviews are what separate them: 100% of Julian Clock's written reviews are positive against 65% of Julian's.
Julian Clock ships an update every 69 months, Julian every 2 months. The most recent releases landed on September 21, 2026 and September 28, 2026 respectively.
| Parameter | Julian Clock | Julian |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 4.9 (15 ratings) — better | 4.8 (4.6K ratings) |
| Positive reviews | 100.0% of reviews — better | 65.4% of reviews |
| Number of ratings | 15 | 4.6K — better |
| Update frequency | Every 69 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Best chart rank | #122 — better | — |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, Apple Watch |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 4 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | Adam Allard | Juan Carlos Perez |
Customer experience
Julian Clock
Julian
Bugs and requests
Julian Clock
Not enough reviews yet to summarise bugs or requests.
Julian
Reported bugs
3 issues- Complication not updating correctly on Apple Watch
- Date displayed incorrectly, one day behind
- App not functioning properly after updates
Requested features
4 requests- Display current date along with Julian date
- Add countdown/days remaining functionality
- Display week number
- Show Julian date on app icon
In-app purchases
Julian Clock
No in-app purchases
Julian
- Short Cup$0.99
- Tall Cup$1.99
- Grande Cup$2.99







