# 杭州地铁 vs 水净世界

The clearest difference is update cadence: 杭州地铁 at every 2 months against 水净世界's every 48 months. 水净世界's advantage is iOS requirement (9.0 vs 11.0). On price, 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.

杭州地铁 ships an update every 2 months, 水净世界 every 48 months. The most recent releases landed on October 24, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | 杭州地铁 | 水净世界 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.6 (8 ratings)](https://appshunter.io/ios/app/app/id1131121104/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | **Every 2 months** | Every 48 months |
| Monetization | Free | — |
| Size | 126 MB | 58 MB |
| Requires iOS | 11.0 | **9.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [HzMt](https://appshunter.io/developer/1705160592) | [ShenZhen DTSTON CO.,LTD.](https://appshunter.io/developer/1000587323) |

## What reviewers say

### 杭州地铁

[App page](https://appshunter.io/ios/app/app/id1131121104)

This app provides comprehensive information and services for navigating Hangzhou's metro system. Users can check fares, buy tickets online, plan routes, and access station details. It aims to make metro travel convenient and informed.

**Highlights:** Fare inquiry, Online ticket purchase, Electronic invoicing, Route planning, Transfer guidance, Line and station information, Schedule information

**Features:** Apple Wallet, Vision Pro support

**In-app purchases:** none


### 水净世界

[App page](https://appshunter.io/ios/app/id1389706639)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 杭州地铁 free?

杭州地铁 is free to download, with no in-app purchases.

### Is 水净世界 free?

水净世界 is free to download, with no in-app purchases.

### Which is updated more often, 杭州地铁 or 水净世界?

杭州地铁 ships an update every 2 months, and 水净世界 every 48 months. Most recently, 杭州地铁 was updated on October 24, 2026 and 水净世界 on October 7, 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.*