# ST FLY vs SJ SCANNER

The clearest difference is update cadence: ST FLY at every 6 weeks against SJ SCANNER's every 9 months. ST FLY also leads on iOS requirement (12.0 vs 15.6). 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.

ST FLY ships an update every 6 weeks, SJ SCANNER every 9 months. The most recent releases landed on October 5, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | ST FLY | SJ SCANNER |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/st-fly/id6670475202/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 9 months |
| Monetization | Free | — |
| Size | 151 MB | 96 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [介甲 张](https://appshunter.io/developer/1319188080) | [Guangdong Shiji Technology Co.,Ltd.](https://appshunter.io/developer/1405540461) |

## What reviewers say

### ST FLY

[App page](https://appshunter.io/ios/app/st-fly/id6670475202)

Control your drone in real-time via WiFi. View live camera feeds and operate flight controls directly from your phone. Capture photos and record videos from your aerial perspective.

**Highlights:** Real-time WiFi connection to UAV, Display live drone camera feed, Control aircraft direction and throttle, Shoot photos, Record video

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

**In-app purchases:** none


### SJ SCANNER

[App page](https://appshunter.io/ios/app/sj-scanner/id6744717286)

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

**In-app purchases:** none


## Frequently asked questions

### Is ST FLY free?

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

### Is SJ SCANNER free?

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

### Do ST FLY or SJ SCANNER have ads?

Neither ST FLY nor SJ SCANNER shows ads.

### Which is updated more often, ST FLY or SJ SCANNER?

ST FLY ships an update every 6 weeks, and SJ SCANNER every 9 months. Most recently, ST FLY was updated on October 5, 2026 and SJ SCANNER on October 12, 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.*