Comparison

Julian vs DataOnline Asset Viewer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 11 date type conversions
  • Calendar view
  • Copy to clipboard
  • App icon badge display
  • Apple Watch complications
Features
Read full description

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. Use the International Fixed Calendar, with 13 months of 28 days, across Julian, widgets, and Apple Watch. Share a personalized image of today's date and year progress.

About

DataOnline Asset Viewer

Access critical information and manage alerts remotely. This mobile tool allows users to view and acknowledge notifications, alarms, and alerts on their iPhone for quick decision-making.

Highlights
  • View notifications, alerts, and alarms
  • Acknowledge critical information
  • Remote access to data
  • On-the-go functionality
  • Quick decision-making support
Features
Read full description

As an alternative to our DOLV3 portal, Asset Viewer is ideal for our customers when they are on the go and still require critical information at their fingertips. Notifications, alerts, and alarms can now be viewed and acknowledged on your iPhone, facilitating quick and decisive action where necessary.

Screenshots

Julian4 screens
DataOnline Asset Viewer3 screens

Verdict

The call

The clearest difference is rating: Julian at 4.8 against DataOnline Asset Viewer's 2.2. Julian also leads on ratings volume (4.8K vs 5). DataOnline Asset Viewer's advantage is in-app purchases (none vs 3) and review sentiment (100% vs 67%). On price, update cadence, ads and device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Julian sells 3 one-off in-app purchases. DataOnline Asset Viewer asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Julian holds the better App Store score, 4.8 against 2.2. That said, the two scores are not equally well evidenced: Julian has 4.8K ratings behind it against 5, so its average is the more settled of the two. Written reviews complicate that: 67% of Julian's written reviews are positive against 100% of DataOnline Asset Viewer's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 26, 2026 and October 16, 2026 respectively.

Scorecard6 real differences · 4 level
Julian versus DataOnline Asset Viewer: the parameters behind the verdict, then further details
ParameterJulianDataOnline Asset Viewer
PriceFreeFree
Rating4.8 (4.8K ratings) — better2.2 (5 ratings)
Positive reviews66.7% of reviews100.0% of reviews — better
Number of ratings4.8K — better5
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod
Requires iOS17.015.6 — better
Further details — not scored
Size19 MB21 MB
Age rating4+4+
DeveloperJuan Carlos PerezDataOnline LLC

Customer experience

Julian

All ratings4,699 ratings
Positive95.2%
Neutral2.6%
Negative2.1%
Written reviews84 reviews
Positive66.7%
Neutral16.7%
Negative16.7%

DataOnline Asset Viewer

All ratings5 ratings
Positive20.0%
Neutral20.0%
Negative60.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and 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

DataOnline Asset Viewer

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

Julian

One-time3
  • Short Cup$0.99
  • Tall Cup$1.99
  • Grande Cup$2.99
None

DataOnline Asset Viewer

No in-app purchases

Questions

Is Julian free?
Julian is free to download, with in-app purchases available.
Is DataOnline Asset Viewer free?
DataOnline Asset Viewer is free to download, with no in-app purchases.
Which has better reviews, Julian or DataOnline Asset Viewer?
Julian is rated higher. Julian averages 4.8 out of 5 from 4.8K ratings, while DataOnline Asset Viewer averages 2.2 from 5 ratings.
Do Julian or DataOnline Asset Viewer have ads?
Neither Julian nor DataOnline Asset Viewer shows ads.
Which is updated more often, Julian or DataOnline Asset Viewer?
Julian ships an update every 2 months, and DataOnline Asset Viewer every 2 months. Most recently, Julian was updated on October 26, 2026 and DataOnline Asset Viewer on October 16, 2026.

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