# Astro-COLIBRI

> Real-time multi-messenger astronomy discovery and observation planning tool. (iPhone/iPad app by Fabian Schussler.)

- Source: https://appshunter.io/ios/app/astro-colibri/id1576668763 (this page in markdown: same URL + `.md`)
- Developer: [Fabian Schussler](https://appshunter.io/developer/1568473892)
- Category: Education
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.6 · 127 MB
- Languages: English
- Released: 2021-08-14
- Data updated: 2026-07-05
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/astro-colibri/id1576668763/reviews.md

## What is Astro?

Astro-COLIBRI: The Real-Time Multi-Messenger Discovery Engine

Flares of known astronomical sources and new transient phenomena occur on timescales from sub-seconds to weeks. The discovery potential of both serendipitous and multi-messenger (MM) follow-up observations is maximized with a tool that provides an instantaneous, comprehensive overview of both persistent sources and transient events in the relevant phase space.

Astro-COLIBRI is a state-of-the-art research infrastructure designed for the era of Time-Domain and Multi-Messenger Astrophysics (TDAMM). Our architecture comprises a RESTful API, a real-time database, and a cloud-based alert system that evaluates incoming VOEvent and GCN messages (via Kafka streams) in real-time.
Key Features:
- Real-Time Alerts: Immediate push notifications for GRBs, Gravitational Waves (GW), High-Energy Neutrinos, Supernovae, and more, filtered by your custom criteria.
- Multi-Wavelength Context: Automatically place events into their MWL context with integrated data from major observatories (Swift, Fermi, SVOM, Einstein-Probe) and catalogs (4FGL, TeVCat, HMXB/LMXB).
- Advanced Planning Tools: Assess observing conditions at professional observatories or your own custom coordinates. Includes Sun/Moon positions, altitude plots, and weather assessments.
- Interactive Visualization: An interactive SkyMap with selectable events, manual zoom, and specialized Tilepy support for planning coverage of large localization uncertainties (e.g., Gravitational Waves).
- Data Enrichment: Access real-time photometry, lightcurves updated twice daily, and galaxy cross-matching to identify potential hosts of transient events.
- Pro-Am Collaboration: Dedicated support for amateur networks (e.g., RAPAS, Kilonova-Catcher, BHTOM), allowing for the submission and tracking of observations directly within the global community.

Optimized for performance and reliability, Astro-COLIBRI exploits concepts such as multi-index database queries and a global content delivery network (CDN) to provide a seamless user experience for professional researchers and citizen scientists alike.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Key features

- Real-time astronomical event alerts
- Multi-wavelength observational context
- Advanced observing condition planning
- Interactive sky map visualization
- Real-time photometry and lightcurve data
- Pro-amateur astronomer collaboration tools

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Astro-COLIBRI AR | $2.99 | per month |
| Astro-COLIBRI AR | $29.99 | per year |


## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/astro-colibri/id1576668763/reviews.md

### 2/5 — Et la traduction ?

*2025-08-08, version 2.23.1*

C’est un Français qui réalise l’application et elle est fonctionnelle qu’en Anglais ! Bravo.

### 5/5 — Merci !

*2024-04-19, version 2.12.0*

Un grand merci pour cette application gratuite et très efficace dans son domaine !

## Frequently asked questions about Astro

### What types of astronomical events does Astro-COLIBRI alert users about?

Astro-COLIBRI provides real-time push notifications for a variety of astronomical events, including Gamma-Ray Bursts (GRBs), Gravitational Waves (GW), High-Energy Neutrinos, and Supernovae. Users can filter these alerts based on their custom criteria.

### How does Astro-COLIBRI provide multi-wavelength context for events?

The app automatically places detected events into their Multi-Wavelength (MWL) context by integrating data from major observatories like Swift and Fermi, as well as catalogs such as 4FGL and TeVCat.

### Can Astro-COLIBRI help with planning observations?

Yes, Astro-COLIBRI includes advanced planning tools to assess observing conditions at professional observatories or custom coordinates. This includes information on Sun/Moon positions, altitude plots, and weather assessments.

### Does Astro-COLIBRI support collaboration between professional and amateur astronomers?

Absolutely. Astro-COLIBRI is designed for Pro-Am collaboration, offering dedicated support for amateur networks. This allows for the submission and tracking of observations directly within the global community.

### What are the subscription options for Astro-COLIBRI AR?

Astro-COLIBRI offers an AR (Augmented Reality) version with subscription plans. Users can choose between a monthly subscription of $2.99 or an annual subscription of $29.99, both offering a 7-day free trial.

### How frequently is the data in Astro-COLIBRI updated?

The app provides real-time photometry and lightcurves that are updated twice daily. This ensures users have access to the most current observational data for transient events.

### Is Astro-COLIBRI suitable for younger users?

Astro-COLIBRI has an age rating of 4+, making it accessible for a wide range of users. Its educational content and interactive features can be beneficial for learning about astronomy.

### Does Astro-COLIBRI have ads?

No, Astro-COLIBRI does not contain advertisements. The app is free to use, with optional in-app purchases available for enhanced features or subscriptions.

## Version history (last 5 releases)

### 2.30.0 — 2026-06-25

GRB optical afterglows
Photometry reported in GCN circulars is now automatically extracted and converted to a common Rc band. Every burst is plotted against a large archival sample, and you can fit the decay and extrapolate the brightness to your planned observation time.

Observatories & observation reports
Register your own observatory and manage its members, submit and browse observation reports from web and mobile, and contact everyone who reported observations of a transient — whether via GCN circular or directly in Astro-COLIBRI.

Sign in with ORCID
Register or log in with your ORCID account, in addition to Google, Apple, and email.

Also in this release: faster image loading, bulk download of events in IVOA VOTable format, update reminders when a newer version is available, and various improvements and bug fixes.

### 2.29.0 — 2026-05-20

- new observatory selection map 
- multiple detections grouped in card stacks
- integrated lightcurve fitting via NMMA
- several bug fixes and improvements"

### 2.28.0 — 2026-04-01

Sign in with Apple, improved AR mode with screenshots & deep links, multi-source visibility plots, and custom events

### 2.27.0 — 2026-03-05

We introduce "Astro-COLIBRI AR": Experience the transient sky like never before and explore transient events, planets, stars and constellations in an augmented reality view of the sky while supporting the operation of the Astro-COLIBRI platform.

Subscription Name: Astro-COLIBRI AR Monthly / Astro-COLIBRI AR Annual
Length of subscription: 1 month /  1 year
Price: $2.99/month or $29.99/year
Payment will be charged to your iTunes Account at confirmation of purchase.
Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period.
Your account will be charged for renewal within 24-hours prior to the end of the current period.
You can manage or turn off auto-renew in your Apple ID Account Settings at any time after purchase.
Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription.
Privacy Policy: https://astro-colibri.science/privacy
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/

### 2.26.0 — 2026-01-30

- multi-language mode
- new colors and observatories
- extended tilepy support
- galaxy cross-matching

## Apps similar to Astro

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Telescopius](https://appshunter.io/ios/app/telescopius/id6479415751) | 3.6 (8) | Free | Education |
| [Black Hole Vision](https://appshunter.io/ios/app/black-hole-vision/id6737292448) | 4.7 (15) | Free | Education |
| [Singularity by Vaonis](https://appshunter.io/ios/app/singularity-by-vaonis/id1515280835) | 4.2 (73) | Free | Education |
| [Gravity by Vaonis](https://appshunter.io/ios/app/gravity-by-vaonis/id6469513708) | 2.3 (37) | Free | Education |
| [Gravitational Wave Events](https://appshunter.io/ios/app/gravitational-wave-events/id1441897107) | 4.8 (132) | Free | Education |
| [Loughborough Wave Lab](https://appshunter.io/ios/app/loughborough-wave-lab/id402424695) | 4.5 (13) | Free | Education |

---

*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 2026-07-05.*