# SD Tool vs Hy

The clearest difference is update cadence: SD Tool at every 6 weeks against Hy's every 3 months. 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 — 1.0 for SD Tool against 1.0 for Hy. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

SD Tool ships an update every 6 weeks, Hy every 3 months. The most recent releases landed on October 4, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | SD Tool | Hy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/sd-tool/id1315420062/reviews) | [1.0 (1 ratings)](https://appshunter.io/ios/app/hy-power/id6447756193/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | — | 25.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 3 months |
| Monetization | Free | Free |
| Size | 3 MB | 43 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Ubigreen](https://appshunter.io/developer/1315420061) | [Jiangsu Hybrid Energy Technology Co., Ltd](https://appshunter.io/developer/1653244701) |

## What reviewers say

### SD Tool

[App page](https://appshunter.io/ios/app/sd-tool/id1315420062)

This utility app facilitates the management of Ubigreen SmartDesk sensors. Users can install, replace, disable, or move sensors by associating them with locations, scanning QR codes, or inputting serial numbers. It offers automatic data syncing to the cloud and local duplication detection.

**Highlights:** Install, replace, disable, and move sensors, Associate sensors with locations, Scan QR codes or input serial numbers, Automatic data sync to Ubigreen cloud, Export installed sensor list to CSV, Local duplication detection, View sensor status and autonomy

**Features:** macOS Compatibility

**In-app purchases:** none


### Hy

[App page](https://appshunter.io/ios/app/hy-power/id6447756193)

Monitor and control hybrid energy systems remotely. Access real-time data from PV and ESS systems via the internet and adjust parameters from anywhere.

**Highlights:** Remote data monitoring, Real-time PV & ESS information, Remote control capabilities, Parameter settings, Internet connectivity

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SD Tool free?

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

### Is Hy free?

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

### Which has better reviews, SD Tool or Hy?

SD Tool and Hy are both rated 1.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do SD Tool or Hy have ads?

Neither SD Tool nor Hy shows ads.

### Which is updated more often, SD Tool or Hy?

SD Tool ships an update every 6 weeks, and Hy every 3 months. Most recently, SD Tool was updated on October 4, 2026 and Hy on October 12, 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.*