# DragonFly4 vs Tàu cá DVBK

The clearest difference is update cadence: Tàu cá DVBK at fortnightly against DragonFly4's every 6 weeks. 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.

DragonFly4 ships an update every 6 weeks, Tàu cá DVBK fortnightly. The most recent releases landed on October 3, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | DragonFly4 | Tàu cá DVBK |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 16.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Fortnightly** |
| Monetization | Free | — |
| Size | 96 MB | 252 MB |
| Requires iOS | **15.1** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kien Nguyen](https://appshunter.io/developer/1125813325) | [Ha Quang Thanh](https://appshunter.io/developer/941564419) |

## What reviewers say

### DragonFly4

[App page](https://appshunter.io/ios/app/dragonfly4/id1386538611)

This app helps manage transportation operations using GPS black boxes or mobile camera recorders. It tracks vehicle location, speed, and status in real-time on digital maps, allowing for efficient fleet management and service quality improvement.

**Highlights:** Real-time vehicle tracking, Speed and status monitoring, Efficient fleet management, Route history playback, Extended sensor value viewing, Camera footage viewing (live & playback)

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

**In-app purchases:** none


### Tàu cá DVBK

[App page](https://appshunter.io/ios/app/tau-ca-dvbk/id1514343355)

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

**In-app purchases:** none


## Frequently asked questions

### Is DragonFly4 free?

DragonFly4 is free to download, with no in-app purchases.

### Is Tàu cá DVBK free?

Tàu cá DVBK is free to download, with no in-app purchases.

### Do DragonFly4 or Tàu cá DVBK have ads?

Neither DragonFly4 nor Tàu cá DVBK shows ads.

### Which is updated more often, DragonFly4 or Tàu cá DVBK?

DragonFly4 ships an update every 6 weeks, and Tàu cá DVBK fortnightly. Most recently, DragonFly4 was updated on October 3, 2026 and Tàu cá DVBK on October 15, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*