Hailmark: Hail Map & Radar
Hail damage reports & alerts
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
See where radar estimates hail fell, by size, over the last 24 hours, free. Pro adds every day since 2020, hail history for any spot, and alerts for areas you watch.
Hailmark draws hail swaths straight from NOAA radar. Open the map and see, in seven color bands from 1 inch to 3 inches and larger, where the radar estimates hail fell over the last 24 hours. Tap any spot for its estimated size and the exact radar window it covers.
It is built for people who work storms: roofers, inspectors, adjusters and anyone deciding where to look first. It is a map and a notebook, not a lead list, and it never shows homeowner names or addresses.
FREE
• Live swaths for the last 24 hours across the contiguous U.S. and southern Canada (up to about the 55th parallel, which takes in Calgary, Edmonton, Winnipeg, Toronto and Montréal), updated about every 30 minutes
• Tap any spot for its estimated hail size, with the radar window in your local time
• A jump-to-the-largest-hail button for when you only want the worst of it
• One saved area and three pins with notes
• Shows the last radar it loaded when you have no signal
HAILMARK PRO
• Every past hail day since October 2020, on the same map
• Hail history for any spot: the radar days that estimated hail exactly there
• Push alerts when radar estimates new hail inside the areas you watch, with your own radius and minimum size
• Up to 20 saved areas, unlimited pins and notes, and a CSV export of your pins with their nearest town and radar estimates
HOW TO READ THE MAP
Sizes are radar-derived estimates (NOAA MRMS MESH), not measurements. Radar can miss hail or overstate it, and an estimate is never proof of damage, so verify on site. Each map covers a 24-hour window ending at 12:00 UTC (7 AM Central). That is not a calendar day, so a storm after that hour appears on the next day's map. Radar files sometimes contain impossible readings. Hailmark checks every file, holds back any that fail, and tells you when it has.
YOUR DATA
Saved areas, pins and notes stay on your phone. Turning on alerts stores that area's location and a push token on Hailmark's server so it can notify you, and you can delete it from the About screen at any time.
Pro is an auto-renewing subscription, monthly or yearly, charged to your Apple ID and managed in its settings.
Radar data: NOAA/NSSL Multi-Radar Multi-Sensor system, a public-domain U.S. government product. Hailmark is not affiliated with or endorsed by NOAA.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://app-factory-privacy-policy.vercel.app
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
A Hailmark Pro purchase that finishes while the app is closed now unlocks on its own the next time you open it, and the About screen has a new row to rate Hailmark.
The developer, Michael Glazebrook, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Purchases
- Location
- Contact Info
- User Content
- Identifiers
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Michael Glazebrook
- Size
- 53.5 MB
- Category
- Weather
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Hailmark Pro Monthly $19.99
- Hailmark Pro Yearly $149.99
- Copyright
- © 2026 Michael Glazebrook