# Dr. LED vs Windmill Pro

The clearest difference is rating: Dr. LED at 5.0 against Windmill Pro's 1.0. Dr. LED also leads on update cadence (monthly vs every 12 months). Windmill Pro's advantage is iOS requirement (9.3 vs 13.0). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Dr. LED holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

Dr. LED ships an update monthly, Windmill Pro every 12 months. The most recent releases landed on September 8, 2026 and June 9, 2026 respectively.

## The numbers

| Metric | Dr. LED | Windmill Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/dr-led/id1041997733/reviews)** | [1.0 (2 ratings)](https://appshunter.io/ios/app/windmill-pro/id1309388375/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 12 months |
| Monetization | Free | Free |
| Size | 21 MB | 12 MB |
| Requires iOS | 13.0 | **9.3** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dynamic Engineering Inc.](https://appshunter.io/developer/1041997732) | [DIGISINE ENERGYTECH CO.,LTD.](https://appshunter.io/developer/1541781655) |

## What reviewers say

### Dr. LED

[App page](https://appshunter.io/ios/app/dr-led/id1041997733)

This app helps users select and convert marine LED bulbs. It provides guidance for navigation lights (single, bicolor, tricolor) and interior/exterior lighting. Selections can be made based on incandescent bulb images, Ancor numbers, bulb trade numbers, or navigation light types.

**Highlights:** Marine LED bulb selection, Conversion guide, Navigation light options (single, bicolor, tricolor), Interior and exterior light options, Selection by incandescent image, Selection by Ancor/Trade numbers

**Features:** macOS Compatibility

**In-app purchases:** none


### Windmill Pro

[App page](https://appshunter.io/ios/app/windmill-pro/id1309388375)

Monitor your Automaxx Windmill wind turbines directly from your smartphone. Track operational data and status via Bluetooth, including voltage, charge levels, and generation metrics.

**Highlights:** Monitor wind turbine operation, Track functional data, View operating status, Bluetooth connectivity, Generating Voltage, Battery Charge Level Indicator, Brake/Unbrake control

**In-app purchases:** none


## Frequently asked questions

### Is Dr. LED free?

Dr. LED is free to download, with no in-app purchases.

### Is Windmill Pro free?

Windmill Pro is free to download, with no in-app purchases.

### Which has better reviews, Dr. LED or Windmill Pro?

Dr. LED is rated higher. Dr. LED averages 5.0 out of 5 from 1 ratings, while Windmill Pro averages 1.0 from 2 ratings.

### Do Dr. LED or Windmill Pro have ads?

Neither Dr. LED nor Windmill Pro shows ads.

### Which is updated more often, Dr. LED or Windmill Pro?

Dr. LED ships an update monthly, and Windmill Pro every 12 months. Most recently, Dr. LED was updated on September 8, 2026 and Windmill Pro on June 9, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*