StormNet vs STORM
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
StormNet
This app provides highly accurate severe weather forecasts using advanced radar and real-time data analysis. It predicts risks for lightning, hail, damaging winds, and tornadoes up to 14 days in advance.
- NEXRAD Super-Res Radar
- 14-day severe weather forecasts
- Lightning, hail, wind, tornado risk prediction
- Real-time data analysis
- Radar overlays (reflectivity, velocity)
- National Weather Service warnings
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StormNet is optimized to provide the most accurate severe weather forecast with NEXRAD, Super-Res Radar. StormNet is completely free, with no ads. Trained on decades of severe weather events, StormNet analyzes high-resolution radar, satellites, ground-based sensors, and weather forecast models in real-time to find complex patterns that lead to severe weather. The model updates every 2 minutes to provide 14-day forecasts for lightning, hail, damaging thunderstorm winds, and tornadoes. Super-Res Radar is the highest-resolution NEXRAD radar data available from 159 stations across the continental United States. Each radar station updates every 3-4 minutes and measures the intensity of precipitation based on how much energy the radar signal receives back from objects in the atmosphere. Combined, StormNet + Super-Res Radar provides a first-of-its-kind, multiple-component severe weather forecast system for the United States. StormNet Map Overlays • Radar: The highest-resolution radar available for the United States from each radar station. • Radar + Risk: NEXRAD radar, alongside StormNet risk probabilities, for the next 4 hours. • Risk Forecast: The StormNet risk probabilities from real-time to 14 days into the future. StormNet Risk Forecasts • Lightning • Hail • Damaging Winds • Tornado Super-Res (NEXRAD) Radar • Radar Reflectivity • Radar Velocity • Spectrum Width National Weather Service Warnings • Tornado • Severe Thunderstorm • Snow Squall • Flash Flood StormNet vs. National Weather Service The National Weather Service, the Storm Prediction Center, and other government agencies are the official sources for watches, warnings, and severe weather information. StormNet should serve as a trusted and automated guide for severe weather risk, but StormNet should not be treated as an official source. StormNet vs. Traditional Weather Models Existing weather forecast models are incredible feats of engineering and predict the ingredients for severe weather, but they are not designed to excel at severe weather forecasting and are not real-time tools. StormNet was trained and optimized to provide severe weather forecasts. StormNet vs. Other Weather Apps Existing weather apps and companies usually pass along official government watches and warnings, and often communicate if lightning or hail is already close by. While these are valuable features, we are not aware of another weather app or company that matches StormNet’s ability to provide real-time updates for lightning, hail, damaging thunderstorm winds, and tornado risk. Powered by OpenSnow In 2011, OpenSnow began predicting snowfall for skiers and snowboarders. OpenSnow has since become a global leader in mountain weather forecasts and expanded to provide forecasts for every type of outdoor activity. Since lightning is a risk to outdoor activities, especially on longer mountain-based adventures, OpenSnow created a weather forecast system that would provide both lightning forecasts to support real-time decisions and multi-day outlooks to support trip planning. Meteorologist Andrew Brady built StormNet to predict the risk of severe weather. OpenSnow acquired his technology in 2024 to help people stay safe and enjoy the outdoors. — Terms & Conditions — StormNet is free and available in the United States. We'll never track you, sell ads, or collect data. We only ask for your location to show the most accurate radar and severe weather forecast. Full terms and conditions can be found here: https://support.opensnow.com/legal/terms | https://support.opensnow.com/legal/privacy
STORM
This app provides real-time storm cell tracking and calculates the exact distance and direction to threatening weather. It offers detailed threat probabilities and future storm paths, helping users make informed decisions for family safety.
- Real-time storm cell tracking
- Exact distance and direction to storms
- Tornado, Hail, and Wind threat probabilities
- 60-minute future storm paths
- Custom location monitoring
- Street-level arrival times
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How far is the Tornado from you? Storm-GPS tells you. Tracks cells in real-time and calculates exact distance to your location. Don't guess. Know. Storm GPS in your pocket gives you the guidance you need to protect your Family and loved ones. Most weather apps just show you a blob of rain. Storm GPS monitors every single storm cell in the sky 24/7, updating threat levels every minute. We combine real-time National Weather Service (NWS) warnings with your precise GPS location to answer the only question that matters: Is this storm hitting ME? Why Storm GPS reduces anxiety: Instant GPS Tracking: See the exact distance and direction to the closest threatening storm cell instantly. Custom Location Tracking: Add your specific locations: Home, Work, Grandma's House... X-Ray Vision: Don't guess. See specific probability bars for Tornado, Hail, and Wind threats for every single cell. 60-Minute Future Paths: Dynamic forecast corridors show you exactly where the storm is headed in the next hour. Professional-Grade Features: Street-Level ETAs: precise arrival times out to 60 miles. Family Safety: Monitor custom locations (Cottage, Kid's Camp, Grandma's House) - remotely. Zero Clutter: No ads, no fluff. Just life-saving data designed for quick decisions when seconds count. Whether you are a storm spotter, emergency responder, or a parent keeping your family safe, Storm GPS puts professional-grade weather intelligence in the palm of your hand. Terms of Use (EULA) https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is rating: StormNet at 4.9 against STORM's 3.4. StormNet also leads on in-app purchases (none vs 1) and review sentiment (82% vs 50%). STORM's advantage is update cadence (every 9 days vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. STORM sells 1 in-app purchase, starting at $4.99 per year. StormNet asks for nothing beyond the download.
StormNet holds the better App Store score, 4.9 against 3.4. Both are backed by a comparable volume of ratings — 20 and 5 respectively. Written reviews point the same way: 82% of StormNet's written reviews are positive against 50% of STORM's.
StormNet ships an update every 2 months, STORM every 9 days. The most recent releases landed on October 31, 2026 and October 28, 2026 respectively.
| Parameter | StormNet | STORM |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (20 ratings) — better | 3.4 (5 ratings) |
| Positive reviews | 81.8% of reviews — better | 50.0% of reviews |
| Number of ratings | 20 — better | 5 |
| Update frequency | Every 2 months | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Best chart rank | #92 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 | 15.0 — better |
| Further details — not scored | ||
| Size | 39 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | Cloudnine Weather, Inc. | Daniel Lampe |
Customer experience
StormNet
STORM
In-app purchases
StormNet
No in-app purchases
STORM
- STORM-GPS Premium Annual$4.991 Year








