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This app provides precise hail detection and alerts using a proprietary machine-learning model. It offers real-time notifications, detailed storm analysis, and historical data, with premium features for enhanced warnings and reporting.
1.3.18
October 29, 2026
• Built for iPhone Duo: full-screen layouts on both displays, side navigation when open flat, and content kept clear of the fold when half-folded • Redesigned landscape layouts on iPad and iPhone Duo for every main screen • New off-season annual plan: $34.99/yr with a 7-day free trial, and the price never goes up while you stay subscribed • Better VoiceOver labels and large-text support • Smoother launch, plus fixes for rare screen flicker and an outdated tab showing • Security updates and general fixes
MoreFounder's exclusive monthly lifetime membership
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.
Yes, Hail Sentinel contains advertisements. These ads are present in the free version of the application.
Hail Sentinel Premium is available for $6.99 per month or $49.99 per year. An off-season annual plan is offered at $34.99 per year from November 1 to February 28.
The app was last updated on October 29, 2026, with version 1.3.18. The developer, Icarus, Inc., regularly releases updates to improve functionality and accuracy.
Hail Sentinel is available on Apple Watch, iPhone, and iPad, offering a comprehensive experience across multiple Apple devices.
Hail Sentinel has an age rating of 4+, making it suitable for a wide range of users.
Hail Sentinel uses its proprietary Anvil machine-learning model, which is specifically trained on hail signatures from dual-polarization radar, aiming for higher accuracy than generic weather data.
Yes, eligible new subscribers can receive a 7-day free trial for Hail Sentinel Premium. This allows users to experience the enhanced features before committing to a subscription.
Your hail reports are used to train and improve detection for areas, not to profile individuals. The app states that user data is not sold.
