# ST FLY vs HeyCyan

The clearest difference is review sentiment: ST FLY at 100% against HeyCyan's 24%. ST FLY also leads on rating (4.0 vs 2.6). HeyCyan's advantage is ratings volume (317 vs 1) and update cadence (every 3 weeks vs every 6 weeks). On price, ads, in-app purchases and monetization model 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 holds the better App Store score, 4.0 against 2.6. That said, the two scores are not equally well evidenced: HeyCyan has 317 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of ST FLY's written reviews are positive against 24% of HeyCyan's.

ST FLY ships an update every 6 weeks, HeyCyan every 3 weeks. The most recent releases landed on October 22, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | ST FLY | HeyCyan |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/st-fly/id6670475202/reviews)** | [2.6 (317 ratings)](https://appshunter.io/ios/app/heycyan/id6742974094/reviews) |
| Number of ratings | 1 | **317** |
| Positive reviews | **100.0% of reviews** | 23.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 151 MB | 250 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [介甲 张](https://appshunter.io/developer/1319188080) | [Shenzhen Qingcheng Future Technology Co., Ltd.](https://appshunter.io/developer/1800632657) |

## 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


### HeyCyan

[App page](https://appshunter.io/ios/app/heycyan/id6742974094)

Connect your smart glasses to your smartphone for enhanced control and functionality. Manage settings, monitor battery and network, and access AI agents directly from your phone.

**Highlights:** Bluetooth pairing and control, Battery and network monitoring, WiFi hotspot creation, Media management (photos, calls), AI agent integration

**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 HeyCyan free?

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

### Which has better reviews, ST FLY or HeyCyan?

ST FLY is rated higher. ST FLY averages 4.0 out of 5 from 1 ratings, while HeyCyan averages 2.6 from 317 ratings.

### Do ST FLY or HeyCyan have ads?

Neither ST FLY nor HeyCyan shows ads.

### Which is updated more often, ST FLY or HeyCyan?

ST FLY ships an update every 6 weeks, and HeyCyan every 3 weeks. Most recently, ST FLY was updated on October 22, 2026 and HeyCyan on October 28, 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.*