Comparison

WONDER onSITE vs WindPower

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

WONDER onSITE

Features
Read full description

WONDER onSITE wind turbine inspection tool to be used in conjunction with the WONDERv3 windpark management software

About

WindPower

This app provides technicians and professionals in the wind energy sector with direct oversight of wind turbines in Germany. It offers tools for searching turbines, detailed weather forecasts, documentation, and safety checks to simplify daily work.

Highlights
  • Search 37,000+ wind turbines
  • 14-day weather forecast per turbine
  • Favorites and search history
  • Photo documentation and safety checks
  • Last Minute Risk Analyses (LMRA)
  • Nm converter
  • Nearby points of interest
Read full description

With WindPower, you have direct oversight of 37,000 wind turbines across Germany โ€“ in an app specifically developed for technicians and professionals in the wind energy sector to make daily work simpler and more efficient. The subscription starts with a free trial month and then becomes a paid subscription. **Easy Wind Turbine Search** Find virtually any wind turbine quickly and precisely by name or keywords and get a comprehensive preview on the map. Information such as manufacturer, type, commissioning date, location, hub height, rotor diameter, rated power, and current weather data are displayed โ€“ all without registration and completely anonymously. **14-Day Weather Forecast** Plan your deployment with a detailed 14-day weather forecast, specifically tailored for each wind turbine in Germany. This way, you always keep an eye on the weather conditions at the deployment site on a weekly, daily, and hourly basis. **Favorites & Search History** Save preferred wind turbines as favorites and quickly access the search history to access important locations at any time. **Photo Documentation & Safety Checks** Document maintenance work with the convenient photo feature and perform Last Minute Risk Analyses (LMRA). Create PDF documentations directly in the app and ensure comprehensive safety. **Other Useful Features:** - **Nm Converter:** Accurately calculate the necessary torque. - **Interesting Places Nearby:** Find nearby hotels, gas stations, and other facilities for your team. Using this app requires an active subscription. The subscription starts with a free trial month and then becomes a paid subscription. The current price is displayed directly in the app. WindPower โ€“ your reliable everyday assistant in wind energy. Download now and experience how straightforward and efficient your work can be!

Screenshots

WONDER onSITE4 screens
WindPower4 screens

Verdict

The call

The clearest difference is in-app purchases: WONDER onSITE at none against WindPower's 1. WONDER onSITE also leads on update cadence (fortnightly vs every 4 months) and iOS requirement (15.0 vs 18). On price, ads and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. WindPower sells 1 in-app purchase, starting at $2.99 per month. WONDER onSITE asks for nothing beyond the download.

UpkeepUpdate frequency

WONDER onSITE ships an update fortnightly, WindPower every 4 months. The most recent releases landed on September 24, 2026 and June 8, 2026 respectively.

Scorecard3 real differences ยท 5 level
WONDER onSITE versus WindPower: the parameters behind the verdict, then further details
ParameterWONDER onSITEWindPower
PriceFreeFree
Positive reviewsโ€”50.0% of reviews
Update frequencyFortnightly โ€” betterEvery 4 months
AdsNoNo
In-app purchasesNo โ€” betterYes
Monetizationโ€”Subscription
DevicesiPhone, iPad, iPod โ€” betteriPhone, iPad
Requires iOS15.0 โ€” better18
Further details โ€” not scored
Size27 MB8 MB
Age rating4+17+
DeveloperDeutsche WindGuard Systems GmbHChristian Schlee

In-app purchases

None

WONDER onSITE

No in-app purchases

1 purchases

WindPower

Subscriptions1
  • Full access1 Month trial$2.991 Month

Questions

Is WONDER onSITE free?
WONDER onSITE is free to download, with no in-app purchases.
Is WindPower free?
WindPower is free to download, with in-app purchases available.
Do WONDER onSITE or WindPower have ads?
Neither WONDER onSITE nor WindPower shows ads.
Which is updated more often, WONDER onSITE or WindPower?
WONDER onSITE ships an update fortnightly, and WindPower every 4 months. Most recently, WONDER onSITE was updated on September 24, 2026 and WindPower on June 8, 2026.

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