National Grid vs Windmill Air
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
National Grid
Securely manage your utility account on the go. Access billing, schedule payments, and report outages with ease. Biometric login provides quick and secure access to your account information and support.
- Biometric account access
- View account and billing information
- Schedule payments
- Report power outages and gas emergencies
- View outage map
- Enroll in paperless billing
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The National Grid mobile app makes it easier to securely manage your account from anywhere. Set up biometrics so you can access your account quickly and securely. With biometrics, you can sign in without having to enter your username and password again. Once you’re signed in, you can easily: • View essential account and billing information • Enroll in paperless billing • View and download a PDF of your current bill • Schedule a payment in-app or via Speedpay • Find nearby payment locations • Report a power outage or gas emergency • View the outage map • Explore your usage Now you can schedule a payment with your bank account, without having to leave the app. Use a new or saved bank account to pay your current bill, account balance or any other amount, just like you would on our website. We’ve also made it easier to report power outages and gas emergencies — with our mobile app, you’ve got access to emergency support right at your fingertips.
Windmill Air
This app allows you to remotely control your smart air care devices. Set schedules and adjust settings to create your ideal home climate from anywhere.
- Remote product control
- Set automation schedules
- Adjust any setting
- Create ideal home climate
- Eco-friendly product integration
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Windmill's air care products are modern, smart, and eco-friendly. Use the Windmill Air app to: 1. Control your products from anywhere! For example, turn on your Windmill AC before you get home, or shut it off in case you forget. 2. Set automation schedules to perfectly match your lifestyle. 3. Adjust any setting with ease, helping you create the ideal home climate!
Screenshots
Verdict
The clearest difference is device support: National Grid at 3 against Windmill Air's 1. On price, rating, review sentiment and ratings volume there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.8 for National Grid against 4.7 for Windmill Air. Both are backed by a comparable volume of ratings — 15K and 6.2K respectively. Written reviews are what separate them: 25% of National Grid's written reviews are positive against 28% of Windmill Air's.
National Grid ships an update every 6 weeks, Windmill Air every 2 months. The most recent releases landed on November 8, 2026 and November 7, 2026 respectively.
| Parameter | National Grid | Windmill Air |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (15K ratings) — better | 4.7 (6.2K ratings) |
| Positive reviews | 24.5% of reviews | 27.9% of reviews — better |
| Number of ratings | 15K — better | 6.2K |
| Update frequency | Every 6 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 60 MB | 83 MB |
| Age rating | 4+ | 4+ |
| Developer | National Grid plc | The Air Lab, Inc. |
Customer experience
National Grid
Windmill Air
User reviews
National Grid
From 15K App Store ratingsWhat we love
- 👍 Easy to use
- 🚀 Smooth payments
- 🔒 Secure login process
Room to improve
- 🐛 Frequent login issues
- 🔍 Lack of account details
- 💰 Confusing payment process with extra fees
Windmill Air
From 6.2K App Store ratingsWhat we love
- 🚀 Aesthetically pleasing design
- 🚀 Quiet operation
- 🚀 Easy installation
- 👍 Responsive app
- 👍 Useful remote control features
Room to improve
- 🐛 Inaccurate temperature readings
- 🐛 Unreliable app connectivity and functionality
- 🐛 Automation issues and failures
- 🐛 Inconsistent settings and mode changes
- 🐛 Glitchy app with frequent bugs
Bugs and requests
National Grid
Reported bugs
3 issues- Unexpected account data errors
- App crashes and freezes
- Payment processing failures
Requested features
3 requests- Ability to view billing history and usage details
- Seamless integration with existing online accounts
- Biometric login options
Windmill Air
Reported bugs
4 issues- App unable to maintain accurate room temperature readings
- Automations not working as expected or reverting settings
- Connectivity issues causing the app to lose control of the unit
- Inconsistent behavior when turning the unit on/off or changing settings
Requested features
4 requests- Integration with smart home platforms
- Improved automation and scheduling capabilities
- More granular temperature and fan speed controls
- Ability to disable annoying app notifications
In-app purchases
National Grid
No in-app purchases
Windmill Air
No in-app purchases
Questions
Is National Grid free?
Is Windmill Air free?
Which has better reviews, National Grid or Windmill Air?
Do National Grid or Windmill Air have ads?
Which is updated more often, National Grid or Windmill Air?
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