# Impulse vs 聆忧

The clearest difference is update cadence: Impulse at fortnightly against 聆忧's every 3 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.

Impulse ships an update fortnightly, 聆忧 every 3 months. Both last shipped on September 29, 2026.

## The numbers

| Metric | Impulse | 聆忧 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 months |
| Size | 102 MB | 34 MB |
| Requires iOS | 9.0 | 9.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 12+ |
| Developer | [Impulse (Qingdao) Health Tech Co.Ltd.](https://appshunter.io/developer/1362465982) | [Beijing LingXinZhiNeng Technology Co.,Ltd](https://appshunter.io/developer/1656010618) |

## What reviewers say

### Impulse

[App page](https://appshunter.io/ios/app/impulse/id1442483602)

**Features:** macOS Compatibility

**In-app purchases:** none


### 聆忧

[App page](https://appshunter.io/ios/app/id6444669056)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Impulse free?

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

### Is 聆忧 free?

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

### Do Impulse or 聆忧 have ads?

Neither Impulse nor 聆忧 shows ads.

### Which is updated more often, Impulse or 聆忧?

Impulse ships an update fortnightly, and 聆忧 every 3 months. Most recently, Impulse was updated on September 29, 2026 and 聆忧 on September 29, 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.*