Julianator vs myDateCalc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
Read full descriptionHide 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
myDateCalc
Read full descriptionHide full description
myDateCalc allows you to easily and quickly calculate a date based on the current date or a date selection. You can shake the device to reset the calculator.
Screenshots
Verdict
The clearest difference is update cadence: Julianator at every 3 months against myDateCalc's every 5 months. 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
Julianator costs $0.99 and myDateCalc $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Julianator ships an update every 3 months, myDateCalc every 5 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.
| Parameter | Julianator | myDateCalc |
|---|---|---|
| Price | $0.99 | $0.99 |
| Rating | 4.7 (125 ratings) — better | — |
| Positive reviews | 70.4% of reviews | — |
| Number of ratings | 125 — better | — |
| Update frequency | Every 3 months — better | Every 5 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, iPad |
| Requires iOS | 17.4 | 16.0 — better |
| Further details — not scored | ||
| Size | 4 MB | 0 MB |
| Age rating | 4+ | 4+ |
| Developer | Bright Day Digital LLC | Kevin Walker |
In-app purchases
Julianator
No in-app purchases
myDateCalc
No in-app purchases
Questions
Is Julianator free?
Is myDateCalc free?
Do Julianator or myDateCalc have ads?
Which is updated more often, Julianator or myDateCalc?
Other comparisons
