# Check ETC 高速公路通行費試算 vs SOWCH

The clearest difference is in-app purchases: SOWCH at none against Check ETC 高速公路通行費試算's 1. SOWCH also leads on ads (none vs shown) and iOS requirement (11.2 vs 13.0). Check ETC 高速公路通行費試算's advantage is update cadence (every 11 months vs every 23 months). On price and device support there is nothing between them.

Both are free to download. Check ETC 高速公路通行費試算 sells 1 one-off in-app purchase. SOWCH asks for nothing beyond the download.

Check ETC 高速公路通行費試算 ships an update every 11 months, SOWCH every 23 months. Both last shipped on November 11, 2026.

## The numbers

| Metric | Check ETC 高速公路通行費試算 | SOWCH |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 11 months** | Every 23 months |
| Size | 6 MB | 24 MB |
| Requires iOS | 13.0 | **11.2** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jing Shin Chen](https://appshunter.io/developer/1092940039) | [SOW CHENG TECHNOLOGY CO., LTD.](https://appshunter.io/developer/1462877065) |

## What reviewers say

### Check ETC 高速公路通行費試算

[App page](https://appshunter.io/ios/app/check-etc/id1102857755)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Check ETC 專業版 | $0.99 | one-time |


### SOWCH

[App page](https://appshunter.io/ios/app/sowch-st940/id1462877096)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Check ETC 高速公路通行費試算 free?

Check ETC 高速公路通行費試算 is free to download, with in-app purchases available.

### Is SOWCH free?

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

### Do Check ETC 高速公路通行費試算 or SOWCH have ads?

Check ETC 高速公路通行費試算 shows ads; SOWCH does not.

### Which is updated more often, Check ETC 高速公路通行費試算 or SOWCH?

Check ETC 高速公路通行費試算 ships an update every 11 months, and SOWCH every 23 months. Most recently, Check ETC 高速公路通行費試算 was updated on November 11, 2026 and SOWCH on November 11, 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.*