NDAWN Inversion vs Global Predictor
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NDAWN Inversion
This app monitors real-time weather data to detect air temperature inversions, which can affect spray drift. It sends push notifications when spraying may no longer be advisable, helping users comply with label instructions. Essential weather data like wind speed and temperature are also provided.
- Real-time inversion detection
- Push notifications for spraying advisories
- Wind speed and temperature data
- Updates every 5 minutes
- Supports selected stations
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Real-time weather data from the North Dakota Agricultural Weather Network (NDAWN) is used to detect low-level air temperature inversions. An air temperature inversion occurs when the air temperatures near the ground are colder than the air above. The cooler and therefore, denser air, may make spray particles drift off target, often referenced as spray drift. Because spraying during an air temperature inversion is in violation of label instructions, this app, once an inversion is detected, sends a push notification to the user informing them that spraying may longer be advisable. These inversion alerts are resent occasionally until the inversion is no longer present for the station selected. Besides inversion alerts, weather data, including wind speed and temperature data which is also critical information while spraying is available. All NDAWN stations update current weather conditions every 5 minutes.
Global Predictor
Get reliable, long-range weather forecasts up to six months in advance for planning travel, events, and outdoor activities. Utilizes a unique recurring cycle methodology for accurate predictions, with an interactive map to view forecasts for any global location.
- 6-month global forecasts
- Interactive world map
- Lezak's Recurring Cycle (LRC) methodology
- User-friendly interface
- Planning for travel and events
- Detailed daily forecasts
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Global Predictor powered by Weather2020 is your ultimate tool for reliable, long-range weather forecasts. Offering accurate predictions up to six months in advance, this app is perfect for planning travel, events, weddings, sporting events, and any outdoor activities. With Global Predictor, you can plan confidently and avoid unexpected weather disruptions. Leveraging the patent pending Lezak’s Recurring Cycle (LRC) methodology, Global Predictor provides highly reliable long-range weather forecasts. The LRC identifies and predicts recurring weather patterns, ensuring a higher level of accuracy over extended periods. Weather2020’s forecasts help users make informed decisions about future plans. While no forecast can guarantee complete accuracy, Weather2020’s technology and methods strive to deliver the most dependable long-range weather predictions available. KEY FEATURES ** INTERACTIVE MAP** One of Global Predictor’s standout features is its interactive map, which allows you to easily select any location worldwide and view detailed weather forecasts. This user-friendly map is perfect for getting precise forecasts tailored to any location in the world. **EASE OF USE** Global Predictor is designed with simplicity in mind, making it accessible to users of all ages and technical abilities. The app features a clean, intuitive interface that presents weather data in an easy-to-understand format. With just a few taps, you can access comprehensive weather forecasts, including daily highs and lows, precipitation chances, and snowfall predictions. USES FOR GLOBAL PREDICTOR **TRAVEL** Never let weather spoil your trips again. Whether you’re planning a beach holiday, a hiking expedition, or a city tour, Global Predictor helps you choose the best time to travel. Get forecasts for your destination months in advance, ensuring you pack appropriately and schedule your activities for the best possible weather. **EVENT PLANNING** Event planners can significantly benefit from Global Predictor. Hosting a conference, festival, or outdoor concert? Ensure your event goes off without a hitch by selecting dates with favorable weather conditions. The app’s long-range forecasts allow you to anticipate and mitigate weather risks, helping you make informed decisions that keep your attendees comfortable and happy. **WEDDINGS** Your wedding day is one of the most important days of your life, and weather plays a crucial role. Global Predictor can assist you in choosing the perfect date for your outdoor wedding, giving you the best chance to avoid rain and ensure your special moment is perfect. **SPORTING EVENTS** Organizing a marathon, soccer match, or golf tournament? Weather can make or break your sporting event. Use Global Predictor to find the best dates for optimal conditions, ensuring both athletes and spectators have a great experience. Plan ahead to avoid extreme temperatures, rain, or snow. **OUTDOOR ACTIVITIES** From picnics and camping trips to gardening and construction projects, outdoor activities are highly dependent on the weather. Global Predictor helps you plan these activities by providing day-by-day forecasts so you know exactly what to expect. Maximize your outdoor enjoyment and productivity by choosing the best days for your activities. Experience the difference in weather forecasting! Download Global Predictor by Weather2020 today and start planning with the confidence that only accurate, long-range weather forecasts can provide. About Weather2020 Weather2020 is dedicated to providing the most accurate long-range weather forecasts available. To learn more about our mission and the technology behind our forecasts, visit https://www.weather2020.com/about. Terms of Service: https://www.weather2020.com/terms-of-service
Screenshots
Verdict
The clearest difference is rating: NDAWN Inversion at 4.7 against Global Predictor's 3.5. NDAWN Inversion also leads on in-app purchases (none vs 2) and iOS requirement (12.0 vs 15.5). Global Predictor's advantage is update cadence (every 8 months vs every 19 months) and chart position (#167 vs unranked). On price, ratings volume, ads and device support 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. Global Predictor sells 2 in-app purchases, starting at $5.99 per month. NDAWN Inversion asks for nothing beyond the download.
NDAWN Inversion holds the better App Store score, 4.7 against 3.5. Both are backed by a comparable volume of ratings — 7 and 11 respectively.
NDAWN Inversion ships an update every 19 months, Global Predictor every 8 months. The most recent releases landed on June 1, 2026 and September 21, 2026 respectively.
| Parameter | NDAWN Inversion | Global Predictor |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (7 ratings) — better | 3.5 (11 ratings) |
| Positive reviews | — | 40.0% of reviews |
| Number of ratings | 7 | 11 — better |
| Update frequency | Every 19 months | Every 8 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Best chart rank | — | #167 — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.5 |
| Further details — not scored | ||
| Size | 28 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | North Dakota State University | Weather 20/20 LLC |
Customer experience
NDAWN Inversion
Global Predictor
In-app purchases
NDAWN Inversion
No in-app purchases
Global Predictor
- Global Predictor Pro Monthly14 Days trial$5.991 Month
- Global Predictor Pro Annual14 Days trial$49.991 Year
Questions
Is NDAWN Inversion free?
Is Global Predictor free?
Which has better reviews, NDAWN Inversion or Global Predictor?
Do NDAWN Inversion or Global Predictor have ads?
Which is updated more often, NDAWN Inversion or Global Predictor?
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