# AstroAlert: Satellite Tracker — ISS Passes & Night Sky Alerts

> ISS Passes & Night Sky Alerts (iPhone/iPad app by THEO BERNARD ROBERT PARAMELLE.)

- Source: https://appshunter.io/ios/app/astroalert-satellite-tracker/id6754640471 (this page in markdown: same URL + `.md`)
- Developer: [THEO BERNARD ROBERT PARAMELLE](https://appshunter.io/developer/1786620053)
- Category: Education, Entertainment
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.0.0 · 59 MB
- Languages: American English, French (France)
- Released: 2025-11-25
- Data updated: 2026-11-09

## What is AstroAlert?

AstroAlert tells you what is passing over your head tonight: satellites like the ISS, planets, the Moon and deep-sky objects, calculated for your exact location.

Open the app, look up at the right moment. AstroAlert turns your phone into a personal space control center.

WHAT YOU CAN DO
• See today's satellite passes above you, with time, azimuth and altitude
• Follow the ISS, Starlink trains, bright satellites, planets, the Moon and the Sun
• Keep only the spectacular events, high above the horizon (altitude over 70°)
• Explore galaxies, nebulae and star clusters with official images
• Space weather: solar flares, geomagnetic storms and aurora chances, with alerts
• Watch the Solar System animate in real time
• Learn with a clear astronomy glossary and daily space facts
• Discover the NASA Astronomy Picture of the Day

HOW IT WORKS
Positions are computed from NASA JPL planetary ephemerides and official TLE orbital data for satellites, then projected onto your sky from your GPS location. No telescope needed: most passes are visible with the naked eye.

WHO IT IS FOR
Curious beginners, families, students, amateur astronomers and astrophotographers who want to know where and when to look.

ASTROALERT+ (PREMIUM)
• Automatic, personalized alerts before each pass
• 1,000+ detailed celestial object sheets
• Every deep-sky object unlocked
• Early access to new features

AstroAlert: the sky above you, explained with precision, simplicity and wonder. Get your camera ready, or simply enjoy the sky.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://astroalert.app/privacy-policy

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| AstroAlert+ Monthly | $2.99 | per month |


## Is AstroAlert safe?

Not enough ratings yet to assess AstroAlert.

## Is AstroAlert legit?

AstroAlert: Satellite Tracker appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for AstroAlert is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 5 releases)

### 1.3.1 — 2026-11-05

A big update to enjoy the night sky even more

TONIGHT
An observing score for the night ahead: cloud cover, Moon phase, number of passes over your location and the best time to head outside.

ISS PASSES
Find out when the International Space Station is visible to the naked eye from where you are, and get a reminder 10 minutes before each pass.

AURORA ALERTS
Get notified as soon as a geomagnetic storm makes the northern lights visible from your location.

TODAY'S SPACE WEATHER
Solar flares, Kp index and coronal mass ejections, with data from NASA and NOAA.

OBSERVING LOG
Record everything you observe, add your photos and unlock badges: ISS Hunter, Planetologist, Sky Master…

AND ALSO
• The solar system right in the navigation bar
• The ISS live stream works again
• Manage your notifications from your profile
• Faster, more stable and more secure app
• Improved translations

### 1.3.0 — 2026-10-19

New: Space Weather
Live dashboard: solar activity, solar wind and Kp index at a glance
Bug fixes and performance improvements

Clear skies!

### 1.2.0 — 2026-09-17

What's new in this version:

- New Solar System interface
- General app improvements
- Bug fixes

Thank you for using AstroAlert!

### 1.1.0 — 2026-01-11

New update!
Track the ISS live in real time.
Minor bug fixes and improvements.

### 1.0 — 2025-11-25

No release notes.

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## More apps by THEO BERNARD ROBERT PARAMELLE

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All apps by THEO BERNARD ROBERT PARAMELLE: https://appshunter.io/developer/1786620053

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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 2026-11-09.*