# Hy vs 联想背单词

The clearest difference is in-app purchases: Hy at none against 联想背单词's 7. Hy also leads on device support (3 vs 1) and iOS requirement (12.0 vs 16.0). 联想背单词's advantage is update cadence (every 9 days vs every 3 months). On price and ads there is nothing between them.

Both are free to download. 联想背单词 sells 7 one-off in-app purchases. Hy asks for nothing beyond the download.

Hy ships an update every 3 months, 联想背单词 every 9 days. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Hy | 联想背单词 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.4 (5 ratings)](https://appshunter.io/ios/app/hy-power/id6447756193/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 9 days** |
| Monetization | Free | — |
| Size | 43 MB | 4 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Jiangsu Hybrid Energy Technology Co., Ltd](https://appshunter.io/developer/1653244701) | [玉美 辛](https://appshunter.io/developer/1700037509) |

## What reviewers say

### 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


### 联想背单词

[App page](https://appshunter.io/ios/app/id6478444606)

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 8元额度 | $0.99 | one-time |
| 28元额度 | $3.99 | one-time |
| 58元额度 | $7.99 | one-time |
| 88元额度 | $12.99 | one-time |
| 128元额度 | $19.99 | one-time |
| 198元额度 | $29.99 | one-time |
| 348元额度 | $49.99 | one-time |


## Frequently asked questions

### Is Hy free?

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

### Is 联想背单词 free?

联想背单词 is free to download, with in-app purchases available.

### Do Hy or 联想背单词 have ads?

Neither Hy nor 联想背单词 shows ads.

### Which is updated more often, Hy or 联想背单词?

Hy ships an update every 3 months, and 联想背单词 every 9 days. Most recently, Hy was updated on November 3, 2026 and 联想背单词 on November 4, 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.*