# HEMS Finder vs TRee

The clearest difference is review sentiment: HEMS Finder at 33% against TRee's 0%. TRee's advantage is update cadence (every 2 months vs every 9 months) and iOS requirement (10.0 vs 15.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

HEMS Finder ships an update every 9 months, TRee every 2 months. The most recent releases landed on October 15, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | HEMS Finder | TRee |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **33.3% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 1 MB | 19 MB |
| Requires iOS | 15.0 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DENSO CORPORATION](https://appshunter.io/developer/367820634) | [KOIZUMI Lighting Technology Corp.](https://appshunter.io/developer/437797680) |

## What reviewers say

### HEMS Finder

[App page](https://appshunter.io/ios/app/hems-finder/id661622112)

This app allows you to search for and connect to Denso HEMS controllers on your home network. Visualize your home's energy consumption, see which devices are using the most power, and control compatible devices.

**Highlights:** Search for Denso HEMS controllers, Visualize home energy consumption, Monitor device energy usage, Control HA and ECHONET Lite devices, View historical energy data

**Features:** macOS Compatibility

**In-app purchases:** none


### TRee

[App page](https://appshunter.io/ios/app/tree-light-control/id1352827991)

Control your smart lighting system with ease. Adjust brightness, color, and set schedules for automated lighting. This app requires compatible smart adapters or bridges and a Wi-Fi router.

**Highlights:** Adjust lighting brightness, Control lighting color, One-tap scene recall, Automated scheduling, Intuitive ON/OFF control

**In-app purchases:** none


## Frequently asked questions

### Is HEMS Finder free?

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

### Is TRee free?

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

### Do HEMS Finder or TRee have ads?

Neither HEMS Finder nor TRee shows ads.

### Which is updated more often, HEMS Finder or TRee?

HEMS Finder ships an update every 9 months, and TRee every 2 months. Most recently, HEMS Finder was updated on October 15, 2026 and TRee on September 28, 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.*