# BA vs QLĐX

The clearest difference is update cadence: QLĐX at every 9 days against BA's every 2 months. QLĐX also leads on iOS requirement (13.0 vs 15.0). 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.

BA ships an update every 2 months, QLĐX every 9 days. The most recent releases landed on October 4, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | BA | QLĐX |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 9 days** |
| Size | 167 MB | 30 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tran Quang Trung](https://appshunter.io/developer/1466206177) | [VNPT Đắk Lắk](https://appshunter.io/developer/1742488651) |

## What reviewers say

### BA

[App page](https://appshunter.io/ios/app/ba-smartdat/id1581077147)

**Features:** macOS Compatibility

**In-app purchases:** none


### QLĐX

[App page](https://appshunter.io/ios/app/qlx/id6499308033)

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

**In-app purchases:** none


## Frequently asked questions

### Is BA free?

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

### Is QLĐX free?

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

### Do BA or QLĐX have ads?

Neither BA nor QLĐX shows ads.

### Which is updated more often, BA or QLĐX?

BA ships an update every 2 months, and QLĐX every 9 days. Most recently, BA was updated on October 4, 2026 and QLĐX on September 30, 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.*