Gravitational Wave Events

Name: Gravitational Wave Events
Rating: 4.8 (132 reviews)
Author: Peter Kramer

LIGO/Virgo/KAGRA GCN alerts

Only for iPhone

Free · Designed for iPhone. Not verified for macOS.

132 Ratings
Age Rating

4+
Years
Category

Education
Developer

Peter Kramer
Language

EN
English
Size

7.8
MB

iPhone

Receive alerts of Gravitational Wave Events from the LIGO/Virgo/KAGRA Collaboration (LVK) on your iPhone. This is an app for both the LIGO/Virgo/KAGRA Community and the general public. It provides low latency alerts using the Open Public Alerts currently being deployed by the Gamma-ray Coordinates Network (GCN) through GCN/LVK Notices (https://emfollow.docs.ligo.org/userguide/). To receive alerts using the app just select the category of alerts you wish to receive - it's that simple! The O4 observing run ended in November 2025. Intermediate Run 1 (IR1) is expected to start in late September, 2026. The app will download all IR1 events and counterparts as they are reported through a GCN Notice in addition to any related GCN Circulars. The app database is pre-populated with selected Notices and Circulars from all previous O1, O2, O3 and O4 events. The app retains Notices for one Mock Event reported through GCN for testing purposes. (For information on LIGO/Virgo/KAGRA Collaboration GCN Notices see: https://gcn.gsfc.nasa.gov/lvc.html .) Includes an interactive sky map showing the location of each event. The app also has a public Message exchange bulletin board and some interesting Links. The Links provide information on Gravitational Waves and the LIGO and Virgo observatories.

Ratings & Reviews

4.8

out of 5

132 Ratings

Great way to experience GW Astronomy
05/13/2024
Sparqx2
This app provides realtime alerts and reporting from around the world on the emerging field of Gravitational Wave Astronomy. It allows one to filter on and receive notifications for event types of interest. I enjoy getting notifications every few days on some new event or observations. Especially fascinating are events involving neutron stars, since they are the most likely to have remnants that can be observed by other means. I have read practically every report by teams trying to correlate observations of neutron star events, and am always amazed by the different teams of astronomers working together to understand the nature of the universe. This app is perfect for anyone who wishes to experience real-time and understand this emerging field and technology better.
Great way to experience GW Astronomy
05/13/2024
Sparqx2

This app provides realtime alerts and reporting from around the world on the emerging field of Gravitational Wave Astronomy. It allows one to filter on and receive notifications for event types of interest. I enjoy getting notifications every few days on some new event or observations. Especially fascinating are events involving neutron stars, since they are the most likely to have remnants that can be observed by other means. I have read practically every report by teams trying to correlate observations of neutron star events, and am always amazed by the different teams of astronomers working together to understand the nature of the universe. This app is perfect for anyone who wishes to experience real-time and understand this emerging field and technology better.
Universe calling!
05/19/2023
xfdcghbytf
That my iphone vibrates at the same time as astronomers around the world are being alerted is beyond cool. I use the app almost daily to check which detectors are on line. I also use the seismometers to monitor world wide earthquakes. LIGO has some of the best to know when the earth is quiet enough for gravity wave science. I think the communications on the app are mostly for professionals and simple questions will get referred to the excellent list of links. Sometimes a pro will answer questions not found in faqs, but it think it was not intended as a big public chat group. I thank the author for allowing the public a front row seat to the events and science going on.
Universe calling!
05/19/2023
xfdcghbytf

That my iphone vibrates at the same time as astronomers around the world are being alerted is beyond cool. I use the app almost daily to check which detectors are on line. I also use the seismometers to monitor world wide earthquakes. LIGO has some of the best to know when the earth is quiet enough for gravity wave science. I think the communications on the app are mostly for professionals and simple questions will get referred to the excellent list of links. Sometimes a pro will answer questions not found in faqs, but it think it was not intended as a big public chat group. I thank the author for allowing the public a front row seat to the events and science going on.
Fun
02/06/2025
NTOx2
Toured Hanford and was amazed by the technology. Then I asked “where’s the indication that the detector saw something” and was astonished when told that the facility had no such readout. Looking back I’m guessing everyone there had this app on their phone. Great work and thank you for sharing!
Fun
02/06/2025
NTOx2

Toured Hanford and was amazed by the technology. Then I asked “where’s the indication that the detector saw something” and was astonished when told that the facility had no such readout. Looking back I’m guessing everyone there had this app on their phone. Great work and thank you for sharing!
For Professional and Amateur Astrophysicists
05/12/2023
god of the asphalt
As an amateur astrophysicist this app has brought the science of gravitational wave detection to me. The real time alerts are exciting and with the links to more information, along with the ability to chat with others within the app, I have learned so much. This app makes the cutting edge science tangible and first person. LIGO’s entire Open Science commitment is incredible.
For Professional and Amateur Astrophysicists
05/12/2023
god of the asphalt

As an amateur astrophysicist this app has brought the science of gravitational wave detection to me. The real time alerts are exciting and with the links to more information, along with the ability to chat with others within the app, I have learned so much. This app makes the cutting edge science tangible and first person. LIGO’s entire Open Science commitment is incredible.

Updated for visual features of iOS26.

Version 2.2.2 5d ago

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The developer does not collect any data from this app.

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Accessibility

Information

Seller: Peter Kramer
Size: 7.8 MB
Category: Education
Compatibility: Requires iOS 12.0 or later.

iPhone
Requires iOS 12.0 or later.

iPod touch
Requires iOS 12.0 or later.

Mac
Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.

Apple Vision
Requires visionOS 1.0 or later.
Languages: English
Age Rating: 4+

4+

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Contains
Messaging and Chat