# Julianator vs DOY

The clearest difference is price: DOY at Free against Julianator's $0.99. DOY also leads on iOS requirement (15.0 vs 17.4). Julianator's advantage is rating (4.7 vs 3.0) and ratings volume (123 vs 2). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

DOY is free to download; Julianator costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Julianator holds the better App Store score, 4.7 against 3.0. That said, the two scores are not equally well evidenced: Julianator has 123 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 70% of Julianator's written reviews are positive against 50% of DOY's.

Julianator ships an update every 3 months, DOY every 4 months. The most recent releases landed on October 23, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Julianator | DOY |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[4.7 (123 ratings)](https://appshunter.io/ios/app/julianator/id383950353/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/doy/id1208546429/reviews) |
| Number of ratings | **123** | 2 |
| Positive reviews | **70.4% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 4 months |
| Monetization | Free | Free |
| Size | 4 MB | 6 MB |
| Requires iOS | 17.4 | **15.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Bright Day Digital LLC](https://appshunter.io/developer/383950356) | [Daniel Hansen](https://appshunter.io/developer/312733912) |

## What reviewers say

### Julianator

[App page](https://appshunter.io/ios/app/julianator/id383950353)

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

**In-app purchases:** none


### DOY

[App page](https://appshunter.io/ios/app/doy/id1208546429)

This app helps you track important upcoming events by counting down the days. It also provides the Day Of Year and sunrise/sunset times for each event based on your location.

**Highlights:** Countdown to user-defined events, Displays Day Of Year for events, Provides sunrise and sunset times, Location-based sunrise/sunset data, Inspired by military 'short timer' tapes

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Julianator free?

Julianator costs $0.99, with no in-app purchases.

### Is DOY free?

DOY is free to download, with no in-app purchases.

### Which has better reviews, Julianator or DOY?

Julianator is rated higher. Julianator averages 4.7 out of 5 from 123 ratings, while DOY averages 3.0 from 2 ratings.

### Do Julianator or DOY have ads?

Neither Julianator nor DOY shows ads.

### Which is updated more often, Julianator or DOY?

Julianator ships an update every 3 months, and DOY every 4 months. Most recently, Julianator was updated on October 23, 2026 and DOY on October 20, 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.*