# KY UFO vs ST FLY

The clearest difference is review sentiment: ST FLY at 100% against KY UFO's 25%. ST FLY also leads on rating (4.0 vs 2.6). KY UFO's advantage is ratings volume (217 vs 1). On price, update cadence, 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.

ST FLY holds the better App Store score, 4.0 against 2.6. That said, the two scores are not equally well evidenced: KY UFO has 217 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 25% of KY UFO's written reviews are positive against 100% of ST FLY's.

KY UFO ships an update monthly, ST FLY every 6 weeks. The most recent releases landed on October 25, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | KY UFO | ST FLY |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.6 (217 ratings)](https://appshunter.io/ios/app/ky-ufo/id1621716933/reviews) | **[4.0 (1 ratings)](https://appshunter.io/ios/app/st-fly/id6670475202/reviews)** |
| Number of ratings | **217** | 1 |
| Positive reviews | 25.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 6 weeks |
| Monetization | Free | Free |
| Size | 133 MB | 151 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [shenzhen cooingdv technology co.,ltd.](https://appshunter.io/developer/1255741645) | [介甲 张](https://appshunter.io/developer/1319188080) |

## What reviewers say

### KY UFO

[App page](https://appshunter.io/ios/app/ky-ufo/id1621716933)

Control toy unmanned aerial vehicles and view captured images. Offers a variety of innovative gameplay modes for enhanced user experience.

**Highlights:** Toy UAV control, Picture display, Multiple gameplay modes, Innovative play options

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to set up
- 🚀 Works as expected
- 💡 Can take pictures and videos

**What reviewers complain about**

- 🐛 App doesn't connect to drone
- 🔋 Short battery life
- 🔍 Poor camera quality
- 🤯 Difficult to control
- 🤖 Unstable connection

**Reported bugs**

- App doesn't connect to phone
- Drone flies away uncontrollably
- Buttons and controls don't work

**Requested features**

- Update app for latest iOS versions
- Improve camera quality
- Add more control options


### 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


## Frequently asked questions

### Is KY UFO free?

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

### Is ST FLY free?

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

### Which has better reviews, KY UFO or ST FLY?

ST FLY is rated higher. KY UFO averages 2.6 out of 5 from 217 ratings, while ST FLY averages 4.0 from 1 ratings.

### Do KY UFO or ST FLY have ads?

Neither KY UFO nor ST FLY shows ads.

### Which is updated more often, KY UFO or ST FLY?

KY UFO ships an update monthly, and ST FLY every 6 weeks. Most recently, KY UFO was updated on October 25, 2026 and ST FLY on October 22, 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.*