Comparison

Julianator vs Crew Rest Pro

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

Head to head
About

Julianator

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.

Highlights
  • Gregorian to Julian Day of Year conversion
  • Julian Day of Year to Gregorian conversion
  • Monthly calendar view
  • Home Screen widgets
  • Lock Screen widgets
  • Watch app with complications
Features
Currently charting
Read full description

This app converts a date between Julian Day of Year and Gregorian. For example, September 11, 2022 converts to 2022-254 and 2022-254 converts to September 11, 2022. This app will convert both directions. Julian Date for this app refers to the day-of-year number (more properly, the ordinal date) in the Gregorian calendar, often used in mainframe computer systems, the military, and the food industry. (Note: this app does not used the term Julian Date to refer to the astronomy definition which is calculated from 4713 BC) Features a simple clean interface with pickers for the dates. The app also features a monthly view allowing a quick view of both Gregorian and Julian days for the entire month. Widgets are available for both the Home Screen and the Lock Screen to display the current day of year. A Watch app is available that includes a date converter and complications to display the current day of year. Note: The app's icon does not change to reflect the current day. Privacy Policy: https://julianator.brightdaydigital.com/privacy Terms of Service: https://julianator.brightdaydigital.com/terms

About

Crew Rest Pro

Features
Read full description

Crew Rest Pro is a professional crew rest calculator built for pilots to plan, manage, and optimize inflight rest schedules with precision. Designed for real-world operations, the app helps flight crews quickly calculate rest rotations, ensuring balanced workload distribution and improved fatigue management on long-haul flights. With an intuitive interface and powerful features, Crew Rest Pro reduces complexity and allows you to focus on safe and efficient operations. Features • Instant Crew Rest Calculations: Quickly determine optimal rest periods between crew members. • Custom Crew Names: Assign real names instead of generic labels like CM1 or CM2. • Save & Share:Export rest plans as screenshots and share with your crew instantly. • History Log:Keep track of previous calculations for quick reference. • Operational Simplicity: Built for fast use in the cockpit and briefing environment.

Screenshots

Julianator4 screens
Crew Rest Pro4 screens

Verdict

The call

The clearest difference is update cadence: Crew Rest Pro at daily against Julianator's every 3 months. Crew Rest Pro also leads on iOS requirement (15.1 vs 17.4). Julianator's advantage is chart position (#195 vs unranked). On price, ads, in-app purchases 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

Julianator costs $0.99 and Crew Rest Pro $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Julianator ships an update every 3 months, Crew Rest Pro daily. The most recent releases landed on October 29, 2026 and October 28, 2026 respectively.

Scorecard3 real differences · 8 level
Julianator versus Crew Rest Pro: the parameters behind the verdict, then further details
ParameterJulianatorCrew Rest Pro
Price$0.99$0.99
Rating4.7 (124 ratings) — better—
Positive reviews70.4% of reviews—
Number of ratings124 — better—
Update frequencyEvery 3 monthsDaily — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
Best chart rank#195 — better—
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod
Requires iOS17.415.1 — better
Further details — not scored
Size4 MB43 MB
Age rating4+4+
DeveloperBright Day Digital LLCbillig.ch GmbH

In-app purchases

None

Julianator

No in-app purchases

None

Crew Rest Pro

No in-app purchases

Questions

Is Julianator free?
Julianator costs $0.99, with no in-app purchases.
Is Crew Rest Pro free?
Crew Rest Pro costs $0.99, with no in-app purchases.
Do Julianator or Crew Rest Pro have ads?
Neither Julianator nor Crew Rest Pro shows ads.
Which is updated more often, Julianator or Crew Rest Pro?
Julianator ships an update every 3 months, and Crew Rest Pro daily. Most recently, Julianator was updated on October 29, 2026 and Crew Rest Pro on October 28, 2026.

Other comparisons