Days between Dates vs Julianator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Days between Dates
Calculate the exact number of days between any two dates. Easily select your dates using intuitive dials. Also provides breakdowns in weeks and days, months and days, or years, months, and days.
- Calculate days between dates
- Spin dials for date selection
- Calculate weeks and days
- Calculate months and days
- Calculate years, months, and days
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Quickly and easily calculate the number of days between any two dates you choose. All you have to do is spin the dials to pick your dates. Also calculates weeks+days, months+days, or years+months+days.
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
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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
Screenshots
Verdict
The clearest difference is price: Days between Dates at Free against Julianator's $0.99. Days between Dates also leads on review sentiment (79% vs 70%) and iOS requirement (14.0 vs 17.4). Julianator's advantage is rating (4.7 vs 4.2) and in-app purchases (none vs 1). On 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
Days between Dates is free to download; Julianator costs $0.99 up front. Days between Dates sells 1 one-off in-app purchase. Julianator asks for nothing beyond the download.
Julianator holds the better App Store score, 4.7 against 4.2. That said, the two scores are not equally well evidenced: Julianator has 117 ratings behind it against 19, so its average is the more settled of the two. Written reviews complicate that: 79% of Days between Dates's written reviews are positive against 70% of Julianator's, so the app with the better star average is not the one people write more warmly about.
Days between Dates ships an update every 17 months, Julianator every 3 months. The most recent releases landed on October 3, 2026 and October 10, 2026 respectively.
| Parameter | Days between Dates | Julianator |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 4.2 (19 ratings) | 4.7 (117 ratings) — better |
| Positive reviews | 79.4% of reviews — better | 70.4% of reviews |
| Number of ratings | 19 | 117 — better |
| Update frequency | Every 17 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Best chart rank | — | #183 — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Requires iOS | 14.0 — better | 17.4 |
| Further details — not scored | ||
| Size | 8 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | William Jockusch | Bright Day Digital LLC |
Customer experience
Days between Dates
Julianator
Bugs and requests
Days between Dates
Reported bugs
6 issues- Date fields switch during selection
- App jumps back to the left box when changing date in the right box
- Start date switches to end date or today's date when entering dates
- App does not save the selected date
- In-app purchase for removing ads is unavailable
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- The number of days between two dates is off by one for some users
Requested features
10 requests- Exclude weekends & holidays during calculation
- Option to calculate weekdays only
- Ability to log and archive calculated dates
- See results in Months Weeks Days format
- Add hours calculation
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- Add a 'today' button
- Save multiple dates
- Copy the calculated answer
- Option to recall date from previous session or input new date on startup
- Calculate calendar date based on input date and number of days
Julianator
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Days between Dates
- Remove Ads$0.99
Julianator
No in-app purchases
Questions
Is Days between Dates free?
Is Julianator free?
Which has better reviews, Days between Dates or Julianator?
Do Days between Dates or Julianator have ads?
Which is updated more often, Days between Dates or Julianator?
Other comparisons
