# 三號電站如約 vs TT EV Charging

The clearest difference is update cadence: 三號電站如約 at every 3 weeks against TT EV Charging's every 2 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.

三號電站如約 ships an update every 3 weeks, TT EV Charging every 2 months. Both last shipped on November 4, 2026.

## The numbers

| Metric | 三號電站如約 | TT EV Charging |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Size | 58 MB | 83 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Sino Express Intelligence Co., Limited](https://appshunter.io/developer/1724540898) | [Shun Shing Contractors Limited](https://appshunter.io/developer/1775406938) |

## What reviewers say

### 三號電站如約

[App page](https://appshunter.io/ios/app/id6723865518)

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

**In-app purchases:** none


### TT EV Charging

[App page](https://appshunter.io/ios/app/tt-ev-charging/id6737230136)

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

**In-app purchases:** none


## Frequently asked questions

### Is 三號電站如約 free?

三號電站如約 is free to download, with no in-app purchases.

### Is TT EV Charging free?

TT EV Charging is free to download, with no in-app purchases.

### Do 三號電站如約 or TT EV Charging have ads?

Neither 三號電站如約 nor TT EV Charging shows ads.

### Which is updated more often, 三號電站如約 or TT EV Charging?

三號電站如約 ships an update every 3 weeks, and TT EV Charging every 2 months. Most recently, 三號電站如約 was updated on November 4, 2026 and TT EV Charging on November 4, 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.*