# eTax Mobile vs DC4.0

The clearest difference is iOS requirement: DC4.0 at 12.0 against eTax Mobile's 15.6. On price, update cadence, ads 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.

eTax Mobile ships an update weekly, DC4.0 every 5 days. The most recent releases landed on September 23, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | eTax Mobile | DC4.0 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.9 (234 ratings)](https://appshunter.io/ios/app/etax-mobile/id1589750682/reviews)** | — |
| Number of ratings | **234** | — |
| Positive reviews | 6.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | **Every 5 days** |
| Monetization | Free | — |
| Size | 243 MB | 78 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [IT Department, General Department of Taxation of Viet Nam](https://appshunter.io/developer/1589750684) | [VNPT Media Corporation](https://appshunter.io/developer/1142483774) |

## What reviewers say

### eTax Mobile

[App page](https://appshunter.io/ios/app/etax-mobile/id1589750682)

This app allows users to create personal income tax declarations and look up tax settlement information. It provides suggestions based on tax authority data and offers notifications for tax obligations and other important updates.

**Highlights:** Create 02/QTT-TNCN tax declarations, Tax settlement information lookup, Suggestions from tax authority data, Notifications for tax obligation changes, Notifications for other updates

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

**In-app purchases:** none


### DC4.0

[App page](https://appshunter.io/ios/app/dc40/id6736500435)

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

**In-app purchases:** none


## Frequently asked questions

### Is eTax Mobile free?

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

### Is DC4.0 free?

DC4.0 is free to download, with no in-app purchases.

### Do eTax Mobile or DC4.0 have ads?

Neither eTax Mobile nor DC4.0 shows ads.

### Which is updated more often, eTax Mobile or DC4.0?

eTax Mobile ships an update weekly, and DC4.0 every 5 days. Most recently, eTax Mobile was updated on September 23, 2026 and DC4.0 on September 18, 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.*