xWind
by Jan Bloemendaal
- Utilities
- Paid
- Zombie
- Small & simple · 93
- Rating
- 4.6
- 554 ratings · US storefront
- Top 78%among 111 Utilities apps
- Last update
- Oct 20, 2023
- Version 1.4.1
- Size
- 13 MB
- Category
- Utilities
- Tracked since
- Oct 10, 2026
Estimated revenue
A model estimate with a likely range, not a reported figure.
No estimate. Apps outside the grossing charts, and some countries, have no reliable rank-to-revenue curve, so we show nothing rather than a guess.
How this estimate is made
Rank: we take the app's best Top Grossing rank on the latest chart day. Category ranks are converted into an equivalent overall rank, because a #10 in Finance earns far less than a #10 overall.
Curve: that equivalent rank is read off a rank-to-revenue curve anchored on public company revenue and market-data reports for the US iPhone App Store.
Country: the curve is scaled per country (Japan is roughly a third of the US, Türkiye under 1%). Where we have no scale, such as China, there is no estimate.
Range: the likely range widens with country, category and chart depth. It is a plausible span, not a statistical confidence interval.
Not included: ads, payments outside the App Store, and any difference between gross sales and what the developer keeps. Low confidence means indirect data; medium means several independent sources agree.
Full methodScreenshots
As shown on the App Store listing.
About this app
Text from the App Store listing.
xWind is an easy to use tool to assist pilots in evaluating wind conditions with respect to head, cross and tailwind limitations.
Once setup, the xWind app provides all information in one single screen, requiring minimal user interaction during high workload phases of flight, displaying:
- Current wind direction and speed
- Runway course
- Cross and head or tailwind components
- Currently applied wind limits
- 'Forbidden' wind angles based on the current wind speed
- Maximum wind speed table based on current wind limits
Reference wind, runway course, as well as wind limits, can all be adjusted on the main screen by either dragging the wind arrow, course rose or wind limit lines.
A settings button at the bottom presents a popup screen where both the units for wind speed (Kts or Mps) and the default values for wind limits can be specified.
In addition to the general setting for wind speed units, the user can select the alternative units for only the current wind, wind components and maximum winds table by double tapping the wind display at the top of the main screen. When operating from a Kts country into Mps territory, this option allows to set the current wind and see the maximum allowed winds in Mps, based on limits that are still set in Kts. Or vice versa....
xWinds supports iOS darkmode.
What’s new
Release notes for the latest version, as written by the developer.
Added a new setting to give users the option of disabling the automatic runway course reset. When enabled (standard), the runway course will reset to default 000° each time xWind launches. When disabled, the last selected runway course will be maintained.
Rank history
Daily position in the Netherlands charts. #1 is at the top.
- Best rank
- #38
- Current rank
- #60
- Days charting
- 2 of 7
On the charts today
Small & simple score
How realistic it is for a small team to build something like this.
93/100
Small & simple
- Developer size100% · 25
Developer: 1 app on the charts
- Audience size80% · 20
Ratings: 554
- App size100% · 10
Size: 13 MB
- Price model100% · 15
Price model: paid
- Demand proof90% · 30
Best rank #2, 6 countries
An indicator, not a fact. We can't see team size. Calculated Oct 25, 2026 · method i2
How the score worksVersion history
- 1.4.1LatestReleased Oct 20, 2023