# 西屋热能 vs LetSmart

The clearest difference is update cadence: 西屋热能 at every 3 months against LetSmart's every 13 months. On price, ads, in-app purchases and device support there is nothing between them.

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

西屋热能 ships an update every 3 months, LetSmart every 13 months. The most recent releases landed on October 25, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | 西屋热能 | LetSmart |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 13 months |
| Size | 112 MB | 208 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [冠源 余](https://appshunter.io/developer/1100084170) | [Tecasa Inc.](https://appshunter.io/developer/1804126997) |

## What reviewers say

### 西屋热能

[App page](https://appshunter.io/ios/app/id1615722763)

**Features:** macOS Compatibility

**In-app purchases:** none


### LetSmart

[App page](https://appshunter.io/ios/app/letsmart/id6743710664)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 西屋热能 free?

西屋热能 is free to download, with no in-app purchases.

### Is LetSmart free?

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

### Do 西屋热能 or LetSmart have ads?

Neither 西屋热能 nor LetSmart shows ads.

### Which is updated more often, 西屋热能 or LetSmart?

西屋热能 ships an update every 3 months, and LetSmart every 13 months. Most recently, 西屋热能 was updated on October 25, 2026 and LetSmart on October 18, 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.*