SimpleFFT vs WindPower Business
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
SimpleFFT
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This app can easily analyze the frequency of sound. For the sound of the recording file recorded at each refresh time interval, FFT is executed and displayed for the four voices collected one after another at each refresh interval.
WindPower Business
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WindPower Business is the professional platform for companies in the wind energy industry. With access to nearly all major wind turbines worldwide, the app supports job planning, fast access to turbine information and structured documentation of work directly at the turbine. FEATURES โข Global turbine database with nearly all major wind turbines โข Internal turbine history visible only to your organisation โข Check in and check out directly at the turbine โข 14 day weather forecast with hourly updates โข Direct access to location data and map view โข Search for hotels, hospitals, supermarkets and workshops near turbines โข Structured job and documentation management for technicians โข Privacy compliant and isolated within your organisation IMPORTANT WindPower Business is intended exclusively for companies and their employees. The app is not a public community platform. Company data is strictly separated and cannot be accessed by other organisations. Ideal for โข Service companies โข Operators โข Project developers โข Maintenance teams โข Technical managers Reduce search times, prevent information loss and bring more structure to your wind turbine documentation.
Screenshots
Verdict
The clearest difference is in-app purchases: WindPower Business at none against SimpleFFT's 1. WindPower Business also leads on ads (none vs shown) and update cadence (every 3 weeks vs every 18 months). SimpleFFT's advantage is iOS requirement (15.0 vs 18.6). On price 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
Both are free to download. SimpleFFT sells 1 one-off in-app purchase. WindPower Business asks for nothing beyond the download.
SimpleFFT ships an update every 18 months, WindPower Business every 3 weeks. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.
| Parameter | SimpleFFT | WindPower Business |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 18 months | Every 3 weeks โ better |
| Ads | Yes | No โ better |
| In-app purchases | Yes | No โ better |
| Devices | iPhone, iPad, iPod โ better | iPhone, iPad |
| Requires iOS | 15.0 โ better | 18.6 |
| Further details โ not scored | ||
| Size | 5 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | HIROFUMI MARUO | rainbow-learning-software |
In-app purchases
SimpleFFT
- Premium Functions$0.49
WindPower Business
No in-app purchases
Questions
Is SimpleFFT free?
Is WindPower Business free?
Do SimpleFFT or WindPower Business have ads?
Which is updated more often, SimpleFFT or WindPower Business?
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