# 送达四海 vs 润亿司机

The clearest difference is update cadence: 润亿司机 at every 5 weeks against 送达四海's every 4 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.

送达四海 ships an update every 4 months, 润亿司机 every 5 weeks. The most recent releases landed on October 27, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | 送达四海 | 润亿司机 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 5 weeks** |
| Size | 130 MB | 22 MB |
| Requires iOS | 11.0 | 11.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Hainan Shuijie Information Technology Co., Ltd](https://appshunter.io/developer/1561889998) | [铜陵润亿物联科技有限公司](https://appshunter.io/developer/1743892731) |

## What reviewers say

### 送达四海

[App page](https://appshunter.io/ios/app/id1561889996)

**Features:** macOS Compatibility

**In-app purchases:** none


### 润亿司机

[App page](https://appshunter.io/ios/app/id6499565071)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 送达四海 free?

送达四海 is free to download, with no in-app purchases.

### Is 润亿司机 free?

润亿司机 is free to download, with no in-app purchases.

### Do 送达四海 or 润亿司机 have ads?

Neither 送达四海 nor 润亿司机 shows ads.

### Which is updated more often, 送达四海 or 润亿司机?

送达四海 ships an update every 4 months, and 润亿司机 every 5 weeks. Most recently, 送达四海 was updated on October 27, 2026 and 润亿司机 on September 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.*