# Julian vs Simple Date Calculator

The clearest difference is price: Julian at Free against Simple Date Calculator's $0.99. Simple Date Calculator's advantage is in-app purchases (none vs 3). On update cadence, ads, device support and iOS requirement there is nothing between them.

Julian is free to download; Simple Date Calculator costs $0.99 up front. Julian sells 3 one-off in-app purchases. Simple Date Calculator asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 11, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Julian | Simple Date Calculator |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.8 (4.8K ratings)](https://appshunter.io/ios/app/julian-quick-dates/id1084251583/reviews)** | — |
| Number of ratings | **4.8K** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 19 MB | 2 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Juan Carlos Perez](https://appshunter.io/developer/931213788) | [Zhiqi Pan](https://appshunter.io/developer/1893386703) |

## What reviewers say

### 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


### Simple Date Calculator

[App page](https://appshunter.io/ios/app/simple-date-calculator/id6762223333)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Julian free?

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

### Is Simple Date Calculator free?

Simple Date Calculator costs $0.99, with no in-app purchases.

### Do Julian or Simple Date Calculator have ads?

Neither Julian nor Simple Date Calculator shows ads.

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

Julian ships an update every 2 months, and Simple Date Calculator every 2 months. Most recently, Julian was updated on November 11, 2026 and Simple Date Calculator on November 9, 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.*