# DM Service vs S

The clearest difference is update cadence: DM Service at every 2 months against S's every 10 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.

DM Service ships an update every 2 months, S every 10 months. The most recent releases landed on May 15, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | DM Service | S |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 10 months |
| Size | 45 MB | 200 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Zhejiang Xingyue Electric Appliance Co., Ltd.](https://appshunter.io/developer/1389646775) | [GUANGDONG SHENLING ENVIRONMENTAL SYSTEMS CO., LTD.](https://appshunter.io/developer/1658701213) |

## What reviewers say

### DM Service

[App page](https://appshunter.io/ios/app/dm-service/id6479637545)

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

**In-app purchases:** none


### S

[App page](https://appshunter.io/ios/app/s-link-plus/id6670312125)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is DM Service free?

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

### Is S free?

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

### Do DM Service or S have ads?

Neither DM Service nor S shows ads.

### Which is updated more often, DM Service or S?

DM Service ships an update every 2 months, and S every 10 months. Most recently, DM Service was updated on May 15, 2026 and S on September 20, 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.*