Tri vs Carina
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Tri
Manage your electric account securely and conveniently on the go. View bills, make payments, schedule alerts, and receive important notifications. Access nearly all web portal features instantly from your mobile device.
- Secure account access
- View bills and balance
- Make payments
- Find payment locations
- Schedule alerts and reminders
- Receive push notifications
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Tri-County Electric (North Carolina) mobile App is designed to give you fast, secure account access so you can easily manage your account details, view your bill and account balance, make payments and find payment locations, schedule alerts and reminders, receive push notifications, and more. Nearly everything you can do from our web portal can now be handled instantly whether you’re at home, at work, or on the go.
Carina
Monitor and control your Carina grid-interactive water heater remotely. View tank temperatures, hot water levels, and critical alarms. Track estimated energy usage and activate vacation mode for convenience.
- View tank temperatures
- Monitor hot water remaining
- Track estimated energy usage
- Receive critical alarms
- Activate vacation mode
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Gain insight and control over your Carina grid-interactive water heater. View current tank temperatures and hot water remaining, monitor critical alarms, track energy usage over time*, and remotely put your water heater into vacation mode. * The energy usage and energy costs displayed in this app are estimates. Thermostat icon designed by Hirschwolf from Flaticon.
Screenshots
Verdict
Tri and Carina both sit at 4.1 stars, but that hides the real split: 50% of Carina's written reviews are positive against 0% of Tri's. Carina also leads on update cadence (every 3 months vs every 7 months). Tri's advantage is iOS requirement (12.0 vs 15.1). On price, rating, ratings volume and ads 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 — 4.1 for Tri against 4.0 for Carina. Both are backed by a comparable volume of ratings — 8 and 7 respectively. Written reviews are what separate them: 0% of Tri's written reviews are positive against 50% of Carina's.
Tri ships an update every 7 months, Carina every 3 months. The most recent releases landed on October 23, 2026 and October 15, 2026 respectively.
| Parameter | Tri | Carina |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (8 ratings) — better | 4.0 (7 ratings) |
| Positive reviews | 0.0% of reviews | 50.0% of reviews — better |
| Number of ratings | 8 — better | 7 |
| Update frequency | Every 7 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 174 MB | 40 MB |
| Age rating | 4+ | 4+ |
| Developer | TRI COUNTY ELECTRIC MEMBERSHIP CORPORATION | Carina Technology |
Customer experience
Tri
Carina
In-app purchases
Tri
No in-app purchases
Carina
No in-app purchases
