# Date and Time Calculator vs Julian

The clearest difference is in-app purchases: Date and Time Calculator at none against Julian's 3. Date and Time Calculator also leads on review sentiment (81% vs 67%) and iOS requirement (15.0 vs 17.0). Julian's advantage is ads (none vs shown). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. Julian sells 3 one-off in-app purchases. Date and Time Calculator asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.7 for Date and Time Calculator against 4.8 for Julian. Both are backed by a comparable volume of ratings — 9.9K and 4.8K respectively. Written reviews are what separate them: 81% of Date and Time Calculator's written reviews are positive against 67% of Julian's.

Date and Time Calculator ships an update every 4 weeks, Julian every 2 months. The most recent releases landed on November 10, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Date and Time Calculator | Julian |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (9.9K ratings)](https://appshunter.io/ios/app/date-and-time-calculator/id552798167/reviews) | **[4.8 (4.8K ratings)](https://appshunter.io/ios/app/julian-quick-dates/id1084251583/reviews)** |
| Number of ratings | **9.9K** | 4.8K |
| Positive reviews | **81.0% of reviews** | 66.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 4 weeks** | Every 2 months |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 18 MB | 19 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [山 钟](https://appshunter.io/developer/1289109809) | [Juan Carlos Perez](https://appshunter.io/developer/931213788) |

## What reviewers say

### Date and Time Calculator

[App page](https://appshunter.io/ios/app/date-and-time-calculator/id552798167)

Calculate the exact number of days, hours, and seconds between any two dates. This tool also allows you to find the date before or after a specified period, making it useful for tracking deadlines, events, or financial products.

**Highlights:** Calculate time between any two dates, Second-level precision, Calculate future dates, Calculate past dates, Period time calculation

**In-app purchases:** none

**What reviewers like**

- 💡 Helpful for tracking dates and time
- 👍 Simple and easy to use
- 🚀 Accurate calculations
- 🚀 Useful for various purposes (medication management, work timelines, etc.)

**What reviewers complain about**

- 🐛 Ads are intrusive and difficult to close
- 🐛 Compatibility issues on iPad
- 🐛 Bugs with date/time calculations
- 🐛 Language issues with ads

**Reported bugs**

- Date/time calculations not always accurate
- Inability to close ads
- Compatibility issues on certain devices

**Requested features**

- Option to calculate business days
- Ability to save frequently used dates
- 24-hour time format
- Improved user interface


### Julian

[App page](https://appshunter.io/ios/app/julian-quick-dates/id1084251583)

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:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Short Cup | $0.99 | one-time |
| Tall Cup | $1.99 | one-time |
| Grande Cup | $2.99 | one-time |

**What reviewers like**

- 🚀 Excellent for work/professional use
- 👍 Simple and easy to use
- 👍 Helpful for daily tasks
- 👍 Convenient complication on Apple Watch

**What reviewers complain about**

- 🐛 Complication issues on Apple Watch (not updating, getting stuck)
- 🐛 Date discrepancies between app and complication
- 🐛 App not functioning properly after updates

**Reported bugs**

- Complication not updating correctly on Apple Watch
- Date displayed incorrectly, one day behind
- App not functioning properly after updates

**Requested features**

- Display current date along with Julian date
- Add countdown/days remaining functionality
- Display week number
- Show Julian date on app icon


## Frequently asked questions

### Is Date and Time Calculator free?

Date and Time Calculator is free to download, with no in-app purchases.

### Is Julian free?

Julian is free to download, with in-app purchases available.

### Which has better reviews, Date and Time Calculator or Julian?

Julian is rated higher. Date and Time Calculator averages 4.7 out of 5 from 9.9K ratings, while Julian averages 4.8 from 4.8K ratings.

### Do Date and Time Calculator or Julian have ads?

Date and Time Calculator shows ads; Julian does not.

### Which is updated more often, Date and Time Calculator or Julian?

Date and Time Calculator ships an update every 4 weeks, and Julian every 2 months. Most recently, Date and Time Calculator was updated on November 10, 2026 and Julian on November 6, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*