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 can keep track of more than 450,000 wind turbines worldwide. The app was developed specifically for technicians and professionals in the wind energy industry to make everyday work easier and more efficient. Wind turbine search made easy Quickly find wind turbines worldwide by name, location or keyword and view them directly on the map. Depending on the availability of the relevant information, details such as manufacturer, model, commissioning date, location, hub height, rotor diameter, rated power and current weather data are displayed, all without registration and completely anonymously. If no suitable wind turbine is found, the quick search can also find places, businesses and other destinations from Google Maps. 14-day weather forecast Plan your assignment with a detailed 14-day weather forecast for the selected turbine location. Keep track of weather conditions on a weekly, daily and hourly basis. Favorites and search history Save preferred turbines as favorites and use your search history to quickly access important locations at any time. Photo documentation and safety checks Document maintenance work with the practical photo feature and perform Last Minute Risk Analyses (LMRA). Create PDF documentation directly in the app to support comprehensive and traceable records. More useful features โ€ข Nm converter: Accurately calculate the required torque values. โ€ข Nearby points of interest: Find hotels, gas stations and other useful facilities for your team. An active subscription is required to use this app. The subscription begins with one free month and becomes a paid subscription afterward. The current price is displayed directly in the app. WindPower โ€“ your reliable everyday companion in wind energy. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

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 5 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 5 months. The most recent releases landed on November 3, 2026 and October 30, 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 5 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 MB118 MB
Age rating4+17+
DeveloperDeutsche WindGuard Systems GmbHrainbow-learning-software

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 5 months. Most recently, WONDER onSITE was updated on November 3, 2026 and WindPower on October 30, 2026.

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