# Carina vs Tree Identifier

The clearest difference is in-app purchases: Carina at none against Tree Identifier's 2. Carina also leads on iOS requirement (15.1 vs 17.6). Tree Identifier's advantage is update cadence (daily vs every 3 months). On price, ads and device support there is nothing between them.

Both are free to download. Tree Identifier sells 2 in-app purchases, starting at $5.99 per 7 days. Carina asks for nothing beyond the download.

Carina ships an update every 3 months, Tree Identifier daily. The most recent releases landed on October 15, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Carina | Tree Identifier |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (7 ratings)](https://appshunter.io/ios/app/carina/id1347983188/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Daily** |
| Monetization | Free | — |
| Size | 40 MB | 10 MB |
| Requires iOS | **15.1** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Carina Technology](https://appshunter.io/developer/1347983187) | [Kevin Hausen](https://appshunter.io/developer/1794777127) |

## What reviewers say

### 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


### Tree Identifier

[App page](https://appshunter.io/ios/app/tree-identifier-tree-ai/id6747577038)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly $5.99, 3 Days Free | $5.99 | per 7 days |
| Annual $29.99 | $29.99 | per year |


## Frequently asked questions

### Is Carina free?

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

### Is Tree Identifier free?

Tree Identifier is free to download, with in-app purchases available.

### Do Carina or Tree Identifier have ads?

Neither Carina nor Tree Identifier shows ads.

### Which is updated more often, Carina or Tree Identifier?

Carina ships an update every 3 months, and Tree Identifier daily. Most recently, Carina was updated on October 15, 2026 and Tree Identifier on October 21, 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.*