# BJ vs SIMREX TRACK

The clearest difference is review sentiment: BJ at 50% against SIMREX TRACK's 17%. BJ also leads on rating (2.8 vs 2.4). SIMREX TRACK's advantage is update cadence (fortnightly vs every 5 weeks). On price, ratings volume, 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.

BJ holds the better App Store score, 2.8 against 2.4. Both are backed by a comparable volume of ratings — 9 and 11 respectively. Written reviews point the same way: 50% of BJ's written reviews are positive against 17% of SIMREX TRACK's.

BJ ships an update every 5 weeks, SIMREX TRACK fortnightly. The most recent releases landed on October 2, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | BJ | SIMREX TRACK |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.8 (9 ratings)](https://appshunter.io/ios/app/bj-gps/id1494086758/reviews)** | [2.4 (11 ratings)](https://appshunter.io/ios/app/simrex-track/id6751484943/reviews) |
| Number of ratings | 9 | **11** |
| Positive reviews | **50.0% of reviews** | 16.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Fortnightly** |
| Monetization | Free | Free |
| Size | 167 MB | 169 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [介甲 张](https://appshunter.io/developer/1319188080) | [Shenzhen Jiandanzhijie Technology Co., Ltd.](https://appshunter.io/developer/1543327488) |

## What reviewers say

### BJ

[App page](https://appshunter.io/ios/app/bj-gps/id1494086758)

Control your drone and view its camera feed in real-time. Adjust throttle, take photos, and record videos directly from your phone.

**Highlights:** Real-time drone control, Live camera feed display, Photo capture, Video recording, Throttle adjustment

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

**In-app purchases:** none


### SIMREX TRACK

[App page](https://appshunter.io/ios/app/simrex-track/id6751484943)

Control your drone's flight and camera directly from your phone. Stream live video feeds and capture photos or record videos in real-time.

**Highlights:** Real-time UAV connection via WiFi, Live video feed display, Aircraft throttle control, Photo capture, Video recording

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

**In-app purchases:** none


## Frequently asked questions

### Is BJ free?

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

### Is SIMREX TRACK free?

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

### Which has better reviews, BJ or SIMREX TRACK?

BJ is rated higher. BJ averages 2.8 out of 5 from 9 ratings, while SIMREX TRACK averages 2.4 from 11 ratings.

### Do BJ or SIMREX TRACK have ads?

Neither BJ nor SIMREX TRACK shows ads.

### Which is updated more often, BJ or SIMREX TRACK?

BJ ships an update every 5 weeks, and SIMREX TRACK fortnightly. Most recently, BJ was updated on October 2, 2026 and SIMREX TRACK 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.*