Gravitational Wave Events

Name: Gravitational Wave Events
Rating: 4.8 (131 reviews)
Author: Peter Kramer

by Peter Kramer

iPhone

Active Last checked 5 Aug 2026

App Store ↗

Quick verdict

What it is: Store information collected; independent summary not yet available.
At a glance: Free to download

Categories and search queries

Official categories

Education
News

AppCorpus categories

Key functions

Function	Availability	Access	Scope	Evidence
Free app	Yes	Free	—	Store published

Screens

App Store

7 store screenshots

Pricing & paywalls

App Store

Free

Last verified 5 Aug 2026

Ratings & reviews

App Store

4.8 131 ratings · App Store

5/5Great way to experience GW Astronomy
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.

Sparqx2 · 5 Aug 2026
5/5Universe calling!
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.

xfdcghbytf · 5 Aug 2026
5/5Fun
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!

NTOx2 · 5 Aug 2026
4/5For Professional and Amateur Astrophysicists
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.

god of the asphalt · 5 Aug 2026
5/5Review
As a medical scientist as opposed to a physical scientist I feel privileged to be allowed access to this information. I am learning a lot and hope to continue to increase my literacy on the science of gravitational wave events. Thank you for making this available.

IBF3rd · 5 Aug 2026

Privacy & accessibility

App Store

Privacy

Data Not Collected Developer declared

Accessibility

No accessibility labels collected yet.

Versions

App Store

1.3
Added: GCN/LVC Counterpart Notices and Circulars GW Chirp alert sound option Info and Report Abusive Posts buttons Bugs removed that incorrectly ordered and labeled events
1.4
Version 1.4 handles notification contents more efficiently. The full Event text is included in the notification. Database fetches are minimized following a notification. This will allow the full community to access Event information immediately upon receipt of a notification.
1.5
Version 1.5 resets all subscriptions and asks to allow notifications more correctly. Version 1.4 handles notification contents more efficiently. The full Event text is included in the notification. Database fetches are minimized following a notification. This will allow the full community to access Event information immediately upon receipt of a notification.
1.6
Bug fix for increasing number of Circulars. FAR expressed in years. Alerts show explicit 'on-off' Improved GCN Circular titles including Circular number
1.7
Counterpart Notices are grouped together (like Circulars). Counterparts are ordered by Rank. Event titles include most probable source (e.g. BBH or BNS) Button to go to GraceDB Events Page added. Certain entries that were submitted under incorrect Event Numbers are refiled. Message bug fixed.
1.8
Added delete function for Message, Notice and Circular. Added change-Event function for Notices and Circulars. Automatically corrects faulty Event trigger numbers for Counterpart Notices. Event Messages table only shows Events with messages.
1.8.1
Version 1.8.1: Fixed bugs in file initialization in Version 1.8 Version 1.8: Added delete function for Message, Notice and Circular. Added change-Event function for Notices and Circulars. Automatically corrects faulty Event trigger numbers for Counterpart Notices. Event Messages table only shows Events with messages.
1.8.2
Version 1.8.2: Fixed bugs in file initialization in Version 1.8 and 1.8.1 Version 1.8: Added delete function for Message, Notice and Circular. Added change-Event function for Notices and Circulars. Automatically corrects faulty Event trigger numbers for Counterpart Notices. Event Messages table only shows Events with messages.
1.9
Color coded events Interactive Sky Maps for each event Detector Status Link Clear all "•" unread indicators Improved accessibility large text in the tables
1.9.1
1.9.1 - minor bug fixes. 1.9 -Color coded events Interactive Sky Maps for each event Detector Status Link Clear all "•" unread indicators Improved accessibility large text in the tables
1.9.2
1.9.1 and 1.9.2 - minor bug fixes. 1.9 -Color coded events Interactive Sky Maps for each event Detector Status Link Clear all "•" unread indicators Improved accessibility large text in the tables
1.9.3
Handles Test GCN Circulars for Early Warning Alert System
1.9.4
Option to hide all retracted and terrestrial Events. Option to show Bayestar or LALInference sky map.
1.9.6
Messages ordered by date. Improved crash protection.
1.9.7
Messages ordered by date. Improved crash protection.
2.1.2
Ready for O4. Different and some very loud alert sounds for each type of Event. More efficient handling of Notifications for an expanded user base. Dark Mode, New Links.
2.1.3
Ready for O4. Different and some very loud alert sounds for each type of Event. More efficient handling of Notifications for an expanded user base. Dark Mode, New Links. Bug removed from 2.1.2
2.1.4
Update for some changes in O4 alerts -----. Different and some very loud alert sounds for each type of Event. More efficient handling of Notifications for an expanded user base. Dark Mode, New Links. Bug removed from 2.1.3
2.1.5
Enabled Bilby sky maps Added option to hide Mock Events
2.1.6
Corrected Bilby maps Changed classification from Terrestrial to Neutron Star if BNS+NSBH>10% Changed FAR threshold for High FAR when BNS+NSBH>10% to >1 per month Changed FAR threshold for High FAR when BBH>90% to >1 per year
2.1.7
Fixed app icon badge Event count reflects Event filters Added sun's RA and Dec to Sky Map
2.1.8
Fixed app icon badge - eliminated Zombie badging Improved RA/DEC of iPhone orientation on Sky Map Expanded size of Events button
2.1.9
Resolve problem with Circular 39259 multiple copies Redo Alert Settings select sound display
2.1.91
Resolve problem with Circular 39259 multiple copies Redo Alert Settings select sound display Continuous update of Event and Message count as they are downloaded
2.2.2 · 29 Jun 2026
Updated for visual features of iOS26.

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Data quality & evidence

Page completeness: Live store listing
Last verified: 5 Aug 2026
Sources: App Store

Independent summary has not been published yet.

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