Alternatives

Products that do what IoT device to warn you of a supernova hours before Earth is destroyed does

1. 1IV
   I’ve built an IoT device to let my family know when I’m in a meeting▲121

   2025 · nullonerror.org

2. 2
   AstroAlert▲113

   Know exactly when satellites pass above you.

   Nov 2025

3. 3
   Luna Ring▲277

   High precision & titanium-AI Smart Ring for peak performance

   2024

4. 4
   IOON▲245

   Smart device that turns water into sanitizer.

   2020

5. 5
   Cosmic-Watch▲73

   The World’s first 3D astronomical clock & stunning skyguide

   2020

6. 6
   Lark▲117

   1st crypto app that correlates news to price in real time.

   2017

7. 7
   Lithium - The People's Sense▲107

   IoT community safety app, alerting everyone nearby

   2023

8. 8
   Skylive▲120

   Never miss a celestial event, anywhere on Earth

   Jun 2026 · skylive.world

9. 9
   Timeshifter▲131

   Jet lag app used by astronauts, elite athletes & top CEOs.

   2018

10. 10
    Guardian Circle▲172

    Global, decentralized 9-1-1 emergency response

    2018

11. 11
    Exploit Alarm▲151

    Vulnerability intelligence for real-time threat analysis

    2024

12. 12
    Aggregations.io▲145

    Real time for your analytics events

    2023

13. 13
    StatusSight▲164

    Real-time outage alerts for the services you rely on

    2024

14. 14
    Snore Circle▲85

    The world's smartest anti-snoring device

    2016

15. 15TN
    Telescope – News and RSS Reader▲166

    2018 · itunes.apple.com

16. 16
    RealmTrack▲132

    Real-time space traffic monitoring

    2025

17. 17OS
    Offline SOS signaling+recovery app for disasters/wars▲163

    A couple of months ago, I built this app to help identify people stuck under rubble. First responders have awesome tools. But in tough situations, even common folks need to help. After what happened in Myanmar, we need something like this that works properly. It has only been tested in controlled environments. It can also be improved; I know BLE is not _that_ effective under rubble. If you have any feedback or can contribute, don't hold back.

    2025 · github.com

18. 18
    Stock Alarm▲74

    Realtime tracking on thousands of stocks

    2022

19. 19
    Eclipse Streamsheets▲86

    No-code platform to monitor and visualize IoT real-time data

    2021

20. 20
    BitAlarm▲81

    Set alarms and get push notifications for any cryptocurrency

    2018

21. 21
    Bosun▲108

    Open-source monitoring and alerting system by Stack Exchange

    2014

22. 22
    Snorelax▲92

    Alarm that wakes you up earlier when traffic is bad

    2016

23. 23
    uphere.space▲112

    Realtime tracking and prediction for thousands of satellites

    2019

24. 24
    Cosmic-light▲84

    A stunning Dynamic Island Control Center for Windows

    Feb 2026

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