# Ouranos Pro: Astro Companion — Plan stargazing & astronomy

> Astronomy companion for planning stargazing with weather and sky quality forecasts. (iPhone/iPad app by Paul Joly.)

- Source: https://appshunter.io/ios/app/ouranos-pro-astro-companion/id6453292305 (this page in markdown: same URL + `.md`)
- Developer: [Paul Joly](https://appshunter.io/developer/1699256618)
- Category: Weather, Education
- Price: $29.99 (on sale, was $34.99)
- Rating: 4.80/5 from 5 App Store ratings
- Age rating: 4+
- Requires: iOS 13.0 · 24 MB
- Languages: English, French, German, Spanish
- Released: 2023-07-28
- Data updated: 2026-06-10
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/ouranos-pro-astro-companion/id6453292305/reviews.md

## What is Ouranos Pro?

Dive into the vastness of the night sky with Ouranos, your personalized astronomy companion, designed to help you arrange your stargazing observations with unparalleled precision.

* When can I stargaze?
* Is the weather favorable for observation tonight?
* Is the weather favorable for observation this week?
* What are the good conditions for stargazing?
* What can I observe tonight?


Our application offers you sharp weather forecasts, covering periods of 7 days, updated hourly. Simplify your planning and determine the ideal time for your observations with a quick read of optimal conditions.

The power of Ouranos lies in our sophisticated algorithm that identifies the best moments for observation, taking into account both weather and astronomical conditions. For even more detailed analysis, consult our Sky Quality Index chart.

Ouranos proves to be the ultimate assistant for both amateur and professional astronomers. It provides relevant and precise data, including:

• Cloud cover
• Seeing (a specific measure that accounts for atmospheric disturbances)
• Transparency
• Wind
• Humidity
• Moonrise and moonset times
• Planet rise and set times

The intuitive and user-friendly interface of Ouranos simplifies the organization of your stargazing evenings. Regardless of your location in the world, Ouranos offers you accurate astronomical weather forecasts, allowing you to anticipate and align your observations with the best possible conditions. Join Ouranos and take control of your nighttime sky explorations.

## Key features

- Detailed weather forecasts for 7 days
- Hourly weather updates
- Sky Quality Index chart
- Cloud cover, seeing, and transparency data
- Moonrise and moonset times
- Planet rise and set times
- Location-based forecasts


## Frequently asked questions about Ouranos Pro

### What is Ouranos Pro?

Ouranos Pro is an astronomy companion app designed to help you plan stargazing observations. It provides detailed weather forecasts and sky quality data to identify the best times for viewing.

### What kind of weather information does Ouranos Pro provide?

Ouranos Pro offers sharp weather forecasts for 7 days, updated hourly. This includes data on cloud cover, seeing, transparency, wind, and humidity, crucial for optimal observation conditions.

### Can Ouranos Pro help me know when to observe planets?

Yes, Ouranos Pro provides planet rise and set times, along with moonrise and moonset times. This information helps you precisely plan when celestial bodies will be visible.

### How accurate are the forecasts in Ouranos Pro?

The app uses a sophisticated algorithm to identify the best moments for observation, considering both weather and astronomical conditions. Users have rated it highly, with an average of 4.8 stars.

### Is Ouranos Pro available on Android?

Ouranos Pro is currently supported on iPhone and iPad devices. It is not specified if an Android version is available.

### How often is Ouranos Pro updated?

The latest version of Ouranos Pro is 1.2.3, and it was last updated on January 21, 2025. This indicates regular updates to improve functionality and data.

### What is the price of Ouranos Pro?

Ouranos Pro is a paid application, priced at $29.99. There are no in-app purchases mentioned, and it does not contain advertisements.

### What age rating does Ouranos Pro have?

Ouranos Pro has an age rating of 4+, making it suitable for a wide range of users interested in astronomy.

## Version history (last 5 releases)

### 1.2.3 — 2025-01-21

Bug resolution and optimization.

### 1.2.2 — 2024-12-22

Bug fixes and improvements

### 1.2.1 — 2024-12-18

Bug fixes and improvements

### 1.2 — 2024-12-18

- Use of a new weather API, Open-Meteo, to select the regional weather model best suited to your location!
- Dew point and precipitation probability data added.
- Integration of AI to provide guidance on the best times for stargazing!
- New Astronomy News Tab: Stay updated with the latest astronomy news and upcoming astronomical event.
- New planet tab.

### 1.1.3 — 2024-04-03

- Interactive light pollution map
- No need to create an account for bookmarks
- Bug fixes and optimization

## Apps similar to Ouranos Pro

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Xasteria: Astronomy Weather](https://appshunter.io/ios/app/xasteria-astronomy-weather/id985030722) | 4.7 (59) | Free | Weather |
| [Scope Nights Astronomy Weather](https://appshunter.io/ios/app/scope-nights-astronomy-weather/id540120977) | 4.5 (743) | $6.99 | Weather |
| [Dark Sky Tech Weather App](https://appshunter.io/ios/app/dark-sky-tech-weather-app/id6443731301) | — | Free | Weather |
| [Live Weather Widgets by Sunio](https://appshunter.io/ios/app/live-weather-widgets-by-sunio/id1619806763) | 3.9 (51) | Free | Weather |
| [bergfex: Weather & Rain Radar](https://appshunter.io/ios/app/bergfex-weather-and-rain-radar/id852999896) | 4.8 (4) | Free | Weather |
| [Weather 247](https://appshunter.io/ios/app/weather-247/id1522222390) | 5.0 (1) | Free | Weather |

## More apps by Paul Joly

- [Ouranos: Stargazing Forecast](https://appshunter.io/ios/app/ouranos-stargazing-forecast/id6456041564)
- [Cosmio: Astronomy Hub](https://appshunter.io/ios/app/cosmio-astronomy-hub/id6608973473)

All apps by Paul Joly: https://appshunter.io/developer/1699256618

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*