# 低空亿 vs LASM

The clearest difference is update cadence: 低空亿 at weekly against LASM's every 2 months. 低空亿 also leads on iOS requirement (15.6 vs 17.6). 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.

低空亿 ships an update weekly, LASM every 2 months. The most recent releases landed on October 20, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | 低空亿 | LASM |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 months |
| Size | 137 MB | 6 MB |
| Requires iOS | **15.6** | 17.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [河北中启之芯科技有限公司](https://appshunter.io/developer/1833453617) | [Shanghai Terjin Information Technology Co., Ltd.](https://appshunter.io/developer/649957877) |

## What reviewers say

### 低空亿

[App page](https://appshunter.io/ios/app/id6748329049)

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

**In-app purchases:** none


### LASM

[App page](https://appshunter.io/ios/app/lasm/id6762499364)

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

**In-app purchases:** none


## Frequently asked questions

### Is 低空亿 free?

低空亿 is free to download, with no in-app purchases.

### Is LASM free?

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

### Do 低空亿 or LASM have ads?

Neither 低空亿 nor LASM shows ads.

### Which is updated more often, 低空亿 or LASM?

低空亿 ships an update weekly, and LASM every 2 months. Most recently, 低空亿 was updated on October 20, 2026 and LASM on September 26, 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.*