Windygo vs DayLength
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Windygo
This app provides detailed wind information and weather forecasts, crucial for outdoor activities like drone piloting and surfing. It offers a unique wind compass, customizable location settings, and Kp index readings. Users can choose between a free version with essential features or a Pro version for extended forecasts and unlimited saved locations.
- Wind compass pointing to wind direction
- Kp Index for drone owners
- Customizable location names
- Home screen widgets
- Multiple wind speed units (mph, km/h, mps, knots)
- 10-day forecast (Pro version)
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Windygo is a full-featured weather app built around the wind — essential for drone pilots, photographers, surfers, golfers, and everyone in between. Now on the Apple Watch! Key Features: • Wind Compass: The wind compass will always point in the direction of the wind, no matter which way you are facing. • Privacy: No account needed. Windygo does not track your data in any way. Your location is only used to fetch your local weather forecast. • Widgets: Get the weather right on your Home Screen. • Kp Index: Important metric for drone owners. • Wind at Altitudes: A weather card that shows the wind direction and speed at 70 ft (20 m), 160 ft (50 m), 330 ft (100 m) and 660 ft (200 m). • Unit Selection: Choose to display the wind speed in miles/hour (mph), kilometres/hour (km/h), meters/second (mps) or knots (kn). • Custom Location Names: Search for any location and rename it to your liking. Maybe you have a favorite beach, hunting spot or hiking trail! Windygo Free • Weather for current location • 24-hour forecast • 5-day forecast (hourly details available on first 2 days) • Current and forecasted Kp Index Windygo Pro Upgrade to Windygo Pro and get access to all the features, which include: • Remove ads • Widgets • The full 10-day forecast with hourly details available for each day • Unlimited saved locations • Wind at multiple altitudes • Custom location names Request More Features We appreciate your feedback! If you need a feature that isn’t currently available, we’ll definitely consider adding it to the app. You can submit feedback directly within the app. Reporting Bugs If you find a bug, please notify us so we can quickly get that fixed! You can submit bug reports directly within the app. Terms of Use https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
DayLength
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Will it still be light when you finish work? Can you fit a run outside before sunset in December? DayLength answers these questions precisely, for any day of the year, anywhere on Earth. Enter any geographic coordinates or search for a city. DayLength calculates sunrise, sunset, and total daylight duration for every day of the year using the NOAA solar calculation algorithm — the same method used in scientific and navigational systems. All computation happens on your device, instantly, with no network required. HOW IT WORKS Open the app and enter your location — type coordinates manually or search by city name. Tap Explore Daylight. An interactive annual chart appears, showing how day enght changes across every day of the year. Drag your finger across the chart to explore any date: the exact sunrise, sunset, and total daylight hours update in real time. The app automatically detects polar phenomena — midnight sun and polar night — for high-latitude locations such as Reykjavik, Tromsø, or Anchorage. KEY FEATURES • Annual daylight chart with drag-to-explore interaction • Precise sunrise and sunset times for any date • Total daylight duration in hours and minutes • Polar night and midnight sun detection for extreme latitudes • City search powered by Apple Maps • Manual coordinate input with quick presets • Fully offline — all calculations run on-device, no internet required • Day/Night progress bar PRIVACY FIRST No account. No sign-up. No tracking. No ads. No subscriptions. Your coordinates are stored only on your device. City search uses Apple's MapKit framework. DayLength makes no network requests of its own.
Screenshots
Verdict
The clearest difference is in-app purchases: DayLength at none against Windygo's 5. 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. Windygo sells 5 in-app purchases, starting at $1.99 per 7 days. DayLength asks for nothing beyond the download.
| Parameter | Windygo | DayLength |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (307 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 307 — better | — |
| Update frequency | Every 5 weeks | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone, Apple Watch — better | iPhone |
| Requires iOS | 17.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 31 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Adam Fahlman | PIERO BOZZOLO |
In-app purchases
Windygo
- Windygo Wind Compass Weekly$1.997 Days
- Windygo Wind Compass Monthly$3.991 Month
- Windygo Wind Compass Annual7 Days trial$14.991 Year
- Windygo Lifetime 30% Off$24.99
- Windygo Wind Compass Lifetime$39.99
DayLength
No in-app purchases









