# eTax Mobile vs Chọn Số

The clearest difference is update cadence: eTax Mobile at weekly against Chọn Số's every 3 weeks. On price, review sentiment, 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, Chọn Số every 3 weeks. Both last shipped on November 3, 2026.

## The numbers

| Metric | eTax Mobile | Chọn Số |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.9 (250 ratings)](https://appshunter.io/ios/app/etax-mobile/id1589750682/reviews)** | — |
| Number of ratings | **250** | — |
| Positive reviews | 6.6% of reviews | **14.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | Free | Free |
| Size | 245 MB | 91 MB |
| Requires iOS | 15.6 | **14.0** |
| 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) | [MobiFone](https://appshunter.io/developer/437730616) |

## 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


### Chọn Số

[App page](https://appshunter.io/ios/app/chon-so/id1602526260)

This app simplifies managing your mobile services. Easily register, order SIM cards, and sign up for plans online. Enjoy convenient home delivery and flexible payment options.

**Highlights:** Easy account registration, Order history management, Quick SIM card selection, OTP plan registration, Home SIM delivery, Online payment options, Online activation (physical & eSIM)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is eTax Mobile free?

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

### Is Chọn Số free?

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

### Do eTax Mobile or Chọn Số have ads?

Neither eTax Mobile nor Chọn Số shows ads.

### Which is updated more often, eTax Mobile or Chọn Số?

eTax Mobile ships an update weekly, and Chọn Số every 3 weeks. Most recently, eTax Mobile was updated on November 3, 2026 and Chọn Số on November 3, 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.*