# 隧e通 vs 青碳行

The clearest difference is ads: 隧e通 at none against 青碳行's shown. 隧e通 also leads on iOS requirement (8.0 vs 12.0). 青碳行's advantage is update cadence (every 4 weeks vs every 3 months). On price, rating, ratings volume and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for 隧e通 against 5.0 for 青碳行. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

隧e通 ships an update every 3 months, 青碳行 every 4 weeks. The most recent releases landed on September 24, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | 隧e通 | 青碳行 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/e/id1176420919/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/id1578613073/reviews) |
| Number of ratings | 2 | 2 |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 4 weeks** |
| Monetization | Free | — |
| Size | 73 MB | 339 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Qingdao Conson Urban Information Technology Co., Ltd.](https://appshunter.io/developer/1238696894) | [佰业绿色科技(青岛)有限公司](https://appshunter.io/developer/1578613075) |

## What reviewers say

### 隧e通

[App page](https://appshunter.io/ios/app/e/id1176420919)

This app provides a seamless payment solution for drivers using the Qingdao Jiaozhou Bay Tunnel. It integrates license plate recognition with mobile payment, eliminating the need for cash or separate toll devices, and offers real-time traffic information.

**Highlights:** License plate recognition for automatic payment, Mobile payment via WeChat and Alipay, Pre-paid toll balance, Electronic invoice generation, Real-time tunnel traffic photos

**In-app purchases:** none


### 青碳行

[App page](https://appshunter.io/ios/app/id1578613073)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 隧e通 free?

隧e通 is free to download, with no in-app purchases.

### Is 青碳行 free?

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

### Which has better reviews, 隧e通 or 青碳行?

隧e通 and 青碳行 are both rated 5.0 out of 5 on the App Store, from 2 and 2 ratings respectively.

### Do 隧e通 or 青碳行 have ads?

青碳行 shows ads; 隧e通 does not.

### Which is updated more often, 隧e通 or 青碳行?

隧e通 ships an update every 3 months, and 青碳行 every 4 weeks. Most recently, 隧e通 was updated on September 24, 2026 and 青碳行 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.*