# Bac Giang vs Sổ Liên Lạc Số

The clearest difference is iOS requirement: Bac Giang at 13.0 against Sổ Liên Lạc Số's 15.1. 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.

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Bac Giang | Sổ Liên Lạc Số |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Size | 73 MB | 46 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Trung tam Cong nghe thong tin va Truyen thong Bac Giang](https://appshunter.io/developer/1604314663) | [TAN DAN INFORMATICS JOINT STOCK COMPANY](https://appshunter.io/developer/1498176699) |

## What reviewers say

### Bac Giang

[App page](https://appshunter.io/ios/app/bac-giang-c/id1619486680)

**Features:** macOS Compatibility

**In-app purchases:** none


### Sổ Liên Lạc Số

[App page](https://appshunter.io/ios/app/so-lien-lac-so/id6763178704)

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

**In-app purchases:** none


## Frequently asked questions

### Is Bac Giang free?

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

### Is Sổ Liên Lạc Số free?

Sổ Liên Lạc Số is free to download, with no in-app purchases.

### Do Bac Giang or Sổ Liên Lạc Số have ads?

Neither Bac Giang nor Sổ Liên Lạc Số shows ads.

### Which is updated more often, Bac Giang or Sổ Liên Lạc Số?

Bac Giang ships an update every 2 weeks, and Sổ Liên Lạc Số every 2 weeks. Most recently, Bac Giang was updated on November 3, 2026 and Sổ Liên Lạc Số on October 31, 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.*