National Grid vs Main
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.
Main
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Main-Tain keeps everything you own running. Cars, homes, boats, motorcycles, RVs, tractors, equipment — one app, one schedule, nothing forgotten. START FREE Track your first vehicle, home, or machine at no cost, with every feature included. Not a trial — no countdown, no card required. Subscribe when you're ready to add more. EVERYTHING IN ONE PLACE Add what you own and Main-Tain keeps its full history: what was serviced, when, what it cost, and who did it. Stop digging through the glovebox. SCHEDULES THAT FIT Start from recommended intervals or set your own — by mileage, by time, or by engine hours. A tractor and a sedan don't need the same plan, so they don't get the same one. REMINDERS THAT LAND Get notified when something is coming due, before it becomes a repair bill. RECEIPTS AND PHOTOS Attach receipts, invoices, and photos to any service record. Warranty claims and resale conversations get a lot easier when you can show the paperwork. BUILT FOR RESALE Complete, documented service history is what separates a fair price from a lowball offer. Main-Tain keeps yours ready. WORKS OFFLINE Log service in a garage, a barn, or a driveway with no signal. It syncs when you reconnect. SUBSCRIPTION Main-Tain is free for your first item. A subscription adds unlimited vehicles, homes, and equipment: • Monthly — $0.99 • Yearly — $9.99 Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically unless turned off at least 24 hours before the end of the current period. Manage or cancel anytime in your Apple Account settings. Terms of Use: https://main-tain.app/terms Privacy Policy: https://main-tain.app/privacy
Screenshots
Verdict
The clearest difference is in-app purchases: National Grid at none against Main's 2. Main's advantage is update cadence (daily vs every 6 weeks). On price, ads, device support and iOS requirement 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. Main sells 2 in-app purchases, starting at $0.99 per month. National Grid asks for nothing beyond the download.
National Grid ships an update every 6 weeks, Main daily. The most recent releases landed on November 8, 2026 and November 5, 2026 respectively.
| Parameter | National Grid | Main |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (15K ratings) — better | — |
| Positive reviews | 24.5% of reviews | — |
| Number of ratings | 15K — better | — |
| Update frequency | Every 6 weeks | Daily — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 16 |
| Further details — not scored | ||
| Size | 60 MB | 19 MB |
| Age rating | 4+ | 4+ |
| Developer | National Grid plc | Hayden Patteson |
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
Main
Not enough reviews yet to summarise bugs or requests.
In-app purchases
National Grid
No in-app purchases
Main
- Monthly Main-Tain Subscription$0.991 Month
- Main-Tain Yearly Subscription$9.991 Year









