# OTIS QMS vs 南湖声音

The clearest difference is ads: OTIS QMS at none against 南湖声音's shown. 南湖声音's advantage is iOS requirement (13.0 vs 15.6). On price, update cadence, 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.

OTIS QMS ships an update every 3 months, 南湖声音 every 4 months. The most recent releases landed on October 26, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | OTIS QMS | 南湖声音 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 3 months** | Every 4 months |
| Size | 32 MB | 211 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [中新软件(上海)有限公司](https://appshunter.io/developer/1483719064) | [Jiaxing Nanhu District Media Center (Jiaxing Daily Nanhu Branch)](https://appshunter.io/developer/1652280859) |

## What reviewers say

### OTIS QMS

[App page](https://appshunter.io/ios/app/otis-qms/id1488572168)

**Features:** macOS Compatibility

**In-app purchases:** none


### 南湖声音

[App page](https://appshunter.io/ios/app/id6444099564)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OTIS QMS free?

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

### Is 南湖声音 free?

南湖声音 is free to download, with no in-app purchases.

### Do OTIS QMS or 南湖声音 have ads?

南湖声音 shows ads; OTIS QMS does not.

### Which is updated more often, OTIS QMS or 南湖声音?

OTIS QMS ships an update every 3 months, and 南湖声音 every 4 months. Most recently, OTIS QMS was updated on October 26, 2026 and 南湖声音 on October 30, 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.*