# PulseHK vs ETA321

The clearest difference is in-app purchases: ETA321 at none against PulseHK's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. PulseHK sells 1 one-off in-app purchase. ETA321 asks for nothing beyond the download.

PulseHK ships an update every 4 days, ETA321 weekly. The most recent releases landed on October 2, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | PulseHK | ETA321 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 days** | Weekly |
| Size | 253 MB | 10 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [FANGJIAN NIU](https://appshunter.io/developer/6787499487) | [Wing Leung Wong](https://appshunter.io/developer/6802715513) |

## What reviewers say

### PulseHK

[App page](https://appshunter.io/ios/app/pulsehk/id6797878107)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| This Stop · One Line | $0.29 | one-time |


### ETA321

[App page](https://appshunter.io/ios/app/eta321-every-second-counts/id6802721196)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PulseHK free?

PulseHK is free to download, with in-app purchases available.

### Is ETA321 free?

ETA321 is free to download, with no in-app purchases.

### Do PulseHK or ETA321 have ads?

Neither PulseHK nor ETA321 shows ads.

### Which is updated more often, PulseHK or ETA321?

PulseHK ships an update every 4 days, and ETA321 weekly. Most recently, PulseHK was updated on October 2, 2026 and ETA321 on October 11, 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.*