Receive real-time hail alerts and view live storm radar powered by a proprietary machine-learning model. Get detailed hail history and advanced features with a premium subscription.
1.3.15
October 5, 2026
• Redesigned Forecast tab: Now, Next 12 hours, and This week, with a calmer layout and storm information first. • New week outlook: see the whole week on one scale and tap any day for a day brief. Free accounts see tomorrow; Premium sees the full week. • Radar and storm replay now always draw as contours, and LIVE appears once the live frame has painted. • Clearer storm reports: contour radar plate, roads and towns, hail sizes in eighths of an inch, and no more duplicate reports for the same storm and address. • Follow Me keeps the app awake while it's tracking or a car is connected. • Smoother performance, plus bug fixes and stability improvements.
MorePremium membership annually for Hail Sentinel
Thank you! Getting you an extra 30 minutes of warning on top of the official alert is exactly what Anvil is built for. Stay safe out there.
No, Hail Sentinel does not contain advertisements. The app is free to use with optional premium features available via subscription.
Premium is available for $6.99 per month or $49.99 per year. A special 'Founding Member' price of $3.99 per month or $29.99 per year is available until October 31, 2026.
Hail Sentinel is supported on Apple Watch, iPhone, and iPad, offering a comprehensive experience across your Apple devices.
The app was last updated on August 28, 2026, indicating a commitment to regular maintenance and improvements.
Hail Sentinel has an age rating of 4+, making it suitable for a wide range of users concerned about weather safety.
Yes, your subscription renews automatically unless auto-renew is turned off at least 24 hours before the current period ends. You can manage your subscription through your Apple ID settings.
Hail Sentinel utilizes its proprietary machine-learning model, Anvil, which processes dual-polarization radar data every two minutes to specifically identify hail signatures, rather than generic weather patterns.
Yes, the Premium subscription plans offer a 7-day free trial, allowing you to experience the advanced features before committing to a purchase.
Storm, Tornado & Rain Alerts
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