# J vs DJI Fly

The clearest difference is rating: DJI Fly at 3.7 against J's 2.9. DJI Fly also leads on ratings volume (4.9K vs 10) and review sentiment (38% vs 20%). J's advantage is monetization model (free vs ad-supported) and iOS requirement (7.0 vs 13.0). 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.

DJI Fly holds the better App Store score, 3.7 against 2.9. That said, the two scores are not equally well evidenced: DJI Fly has 4.9K ratings behind it against 10, so its average is the more settled of the two. Written reviews point the same way: 20% of J's written reviews are positive against 38% of DJI Fly's.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on November 2, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | J | DJI Fly |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.9 (10 ratings)](https://appshunter.io/ios/app/j-ufo/id1156422068/reviews) | **[3.7 (4.9K ratings)](https://appshunter.io/ios/app/dji-fly/id1479649251/reviews)** |
| Number of ratings | 10 | **4.9K** |
| Positive reviews | 20.0% of reviews | **37.6% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Monetization | **Free** | Ad-supported |
| Best chart rank | — | **#92** |
| Size | 33 MB | 1.4 GB |
| Requires iOS | **7.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Junshixin Technology Co., Ltd](https://appshunter.io/developer/1149649841) | [DJI](https://appshunter.io/developer/599957686) |

## What reviewers say

### J

[App page](https://appshunter.io/ios/app/j-ufo/id1156422068)

Control a quadrotor aircraft using your iPhone or iPad. View real-time video from the aircraft's camera and capture photos or record videos directly to your device.

**Highlights:** Remote aircraft control, Real-time video streaming, Photo capture, Video recording, Media storage

**Features:** macOS Compatibility

**In-app purchases:** none


### DJI Fly

[App page](https://appshunter.io/ios/app/dji-fly/id1479649251)

**Currently charting:** #92 Top Free · Photo & Video (US App Store)

This app simplifies drone piloting with an intuitive interface for aerial photography. It offers quick wireless content transfer to your phone and provides resources for discovering flight locations and learning drone skills. Designed for both beginners and experienced pilots.

**Highlights:** Intuitive flight interface, Quick wireless content transfer, Discover flight spots and projects, Drone piloting tutorials, Aerial photography tools

**Features:** Apple Watch app, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Easy to use
- 👍 User-friendly interface
- 🚀 Fast GPS connection
- 👍 Cinematic footage
- 🚀 Stable flight performance

**What reviewers complain about**

- 🐛 Quick transfer not working
- 🐛 App crashes during editing
- 🔋 Phone overheating issues
- 🐛 Unreliable connection
- 🐛 Buggy firmware updates

**Reported bugs**

- Unable to download videos
- Incorrect altitude readings
- Frequent app crashes
- Issues with unlocking restricted areas
- Compatibility problems with newer devices

**Requested features**

- Add manual camera controls
- Implement active tracking
- Allow customizable flight modes
- Improve editing capabilities
- Add offline map support


## Frequently asked questions

### Is J free?

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

### Is DJI Fly free?

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

### Which has better reviews, J or DJI Fly?

DJI Fly is rated higher. J averages 2.9 out of 5 from 10 ratings, while DJI Fly averages 3.7 from 4.9K ratings.

### Do J or DJI Fly have ads?

Neither J nor DJI Fly shows ads.

### Which is updated more often, J or DJI Fly?

J ships an update monthly, and DJI Fly monthly. Most recently, J was updated on November 2, 2026 and DJI Fly on November 7, 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.*