# Tri vs Carina

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.

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.

## The numbers

| Metric | Tri | Carina |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (8 ratings)](https://appshunter.io/ios/app/tri-county-emc/id643948019/reviews)** | [4.0 (7 ratings)](https://appshunter.io/ios/app/carina/id1347983188/reviews) |
| Number of ratings | **8** | 7 |
| Positive reviews | 0.0% of reviews | **50.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 174 MB | 40 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TRI COUNTY ELECTRIC MEMBERSHIP CORPORATION](https://appshunter.io/developer/643948022) | [Carina Technology](https://appshunter.io/developer/1347983187) |

## What reviewers say

### Tri

[App page](https://appshunter.io/ios/app/tri-county-emc/id643948019)

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.

**Highlights:** Secure account access, View bills and balance, Make payments, Find payment locations, Schedule alerts and reminders, Receive push notifications

**Features:** macOS Compatibility

**In-app purchases:** none


### Carina

[App page](https://appshunter.io/ios/app/carina/id1347983188)

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.

**Highlights:** View tank temperatures, Monitor hot water remaining, Track estimated energy usage, Receive critical alarms, Activate vacation mode

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Tri free?

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

### Is Carina free?

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

### Which has better reviews, Tri or Carina?

Tri is rated higher. Tri averages 4.1 out of 5 from 8 ratings, while Carina averages 4.0 from 7 ratings.

### Do Tri or Carina have ads?

Neither Tri nor Carina shows ads.

### Which is updated more often, Tri or Carina?

Tri ships an update every 7 months, and Carina every 3 months. Most recently, Tri was updated on October 23, 2026 and Carina on October 15, 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.*