# Mega vs Sổ Liên Lạc Số

The clearest difference is update cadence: Sổ Liên Lạc Số at every 2 weeks against Mega's every 2 months. Mega's advantage is iOS requirement (13.4 vs 15.1). 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.

Mega ships an update every 2 months, Sổ Liên Lạc Số every 2 weeks. The most recent releases landed on September 25, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Mega | Sổ Liên Lạc Số |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Size | 26 MB | 46 MB |
| Requires iOS | **13.4** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Nguyen Van Huu](https://appshunter.io/developer/1649904386) | [TAN DAN INFORMATICS JOINT STOCK COMPANY](https://appshunter.io/developer/1498176699) |

## What reviewers say

### Mega

[App page](https://appshunter.io/ios/app/mega-smart-parking/id6467084591)

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

**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 Mega free?

Mega 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 Mega or Sổ Liên Lạc Số have ads?

Neither Mega nor Sổ Liên Lạc Số shows ads.

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

Mega ships an update every 2 months, and Sổ Liên Lạc Số every 2 weeks. Most recently, Mega was updated on September 25, 2026 and Sổ Liên Lạc Số on September 17, 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.*