SIMREX FLY vs Fly Go 4
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SIMREX FLY
Control your smart drone with this app. It enables real-time image and flight data transmission between your mobile device and the drone. Features include GPS status, coordinate display, battery monitoring, and various flight modes like waypoint planning and follow.
- Real-time image and flight data transmission
- GPS status and coordinate display
- Battery power monitoring with auto-return
- Manual joystick operation
- Waypoint planning, follow, and orbit flight modes
- Camera parameter settings for shooting and recording
- One-key take-off, landing, and return to home
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SIMREX FLY is a control application software for smart drones. Based on WI-FI wireless transmission technology, it realizes real-time transmission of images and flight data between mobile phones and drones. Features 1. GPS status: Take off safely only after 6N stars 2. Latitude and longitude: Real-time display of aircraft coordinates 3. Battery power: Real-time display of the aircraft power percentage, low power automatically return to home 4. Shortcut keys for manual joystick operation: Click the button to unlock the aircraft joystick, which can replace the remote control joystick to operate the aircraft 5. Settings: There are operating joysticks (game mode setting, accelerometer calibration, geomagnetic calibration and beginner mode selection), map, and others (real-time preview pixel selection, device information, data center) 6. Flight mode: Turn on flight mode to choose waypoint planning, follow, point of interest orbit, and exit 7. Map: Click on the map to display the map in full screen, click again to switch to the scene shot by the aircraft 8. One key return to home: Click this function button to automatically return to home and land at short distances 9. One key take-off and landing: Click this function button to conduct take-off and landing 10. High and low speed display: Display the current speed of the aircraft 11. One-key unlock: Click this button to start the aircraft's brushless motor and prepare for take-off 12. Camera parameter setting: you can set the camera for single shooting, continuous shooting, and delayed shooting 13. Shooting: Click this button to directly shoot your favorite scene 14. Recording: Click this button to realize the scene recording function, click this button again to stop recording and save video automatically. 15. Gallery: Click this button to view the captured pictures, videos, and pictures and videos in the SD card (it need to install the SD card )
Fly Go 4
Control your drone with advanced flight features and real-time HD video transmission. Explore intelligent flight modes for professional-quality footage and track flight data. Compatible with a wide range of drone models.
- Advanced flight controls
- Real-time HD video transmission
- Smart flight modes (ActiveTrack, QuickShot)
- Intuitive user interface
- Comprehensive flight data logging
- Wide drone model compatibility
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Unlock the skies with DJI Fly Go 4: Drone Mobile Camera and take your drone experience to new heights! Compatibility: DJI Fly Go 4: Drone Mobile Camera is built on Mobile SDK v4.16.2, which supports a wide range of drones. There are 34 drone models supported in this version: - Mavic Air - Mavic Air 2 - Mavic Mini - Mavic 2 Enterprise - Mavic 2 Enterprise Dual - Mavic 2 Pro - Mavic 2 Zoom - Mavic Pro - Phantom 3 Standard - Phantom 3 Advanced - Phantom 3 Professional - Phantom 3 4K - Phantom 4 - Phantom 4 Advanced - Phantom 4 Professional - Phantom 4 Professional V2 - Phantom 4 RTK - Phantom 4 Multispectral - Inspire 1 - Inspire 1 Pro/Raw - Inspire 2 - Matrice 100 - Matrice 200 - Matrice 200 V2 - Matrice 210 - Matrice 210 V2 - Matrice 210 RTK - Matrice 210 RTK V2 - Matrice 300 RTK - Matrice 600 - Spark - Mini 2 - Mini SE - Air 2S *For Mavic users, there are some features our app hasn't supported yet: Low Battery Warning, Critical Low Battery Warning, Time to Discharge, Sync Gimbal with Aircraft Heading, Lock Gimbal When Shooting, Gimbal Mode. Play media, Preview media, On/Off Head LEDs & Camera Forward/Down (Mavic Air 2S: double-tap is C2, 1-tap is C1). Disclaimer: We would like to clarify that this application is not an official app, but rather a support app utilizing the official Mobile SDK provided by the manufacturer. Still, this app can work perfectly with all drone models above and their RCs. Additionally, it is not affiliated with or endorsed by any of the mentioned companies, and it is not an official product of that company or its affiliates. DJI Fly Go 4: Drone Mobile Camera is the ultimate companion app for your drones, designed to offer unparalleled control, ease of use, and a seamless flying experience. Whether a beginner or a seasoned drone pilot, DJI Fly Go 4: Drone Mobile Camera provides the tools and features to explore the skies confidently and creatively. Why Choose DJI Fly Go 4: Drone Mobile Camera? - Intuitive Interface: Our user-friendly interface ensures easy drone operation, providing clear information for a smooth flying experience, whether you're a beginner or an experienced pilot. - Advanced Flight Controls: Take full control of your drones with DJI Fly Go 4: Drone Mobile Camera's advanced flight features, which allow for precision and accuracy in complex maneuvers and effortless aerial shot capture. - Real-Time Video Transmission: Experience real-time HD video transmission directly to your mobile device. With DJI Fly Go 4: Drone Mobile Camera, you can see exactly what your drone sees, allowing you to make quick decisions and adjustments for the best possible footage. - Smart Flight Modes: Capture professional-quality videos and photos with intelligent flight modes like ActiveTrack, FocusTrack, Point of Interest , QuickShot, Spotlight,... It is ideal for dynamic action scenes or serene landscapes. - Comprehensive Flight Data: Keep track of all your flight details with in-depth flight data logging. DJI Fly Go 4: Drone Mobile Camera records your drone's flight path, altitude, speed, and more, providing valuable insights to improve your flying skills. - Easy Media Management: Manage your photos and videos directly within the app with QuickTransfer. Access, edit, and share your stunning aerial footage with friends and family, or upload it to social media to showcase your skills. - Safe Flying: Safety is our priority. DJI Fly Go 4: Drone Mobile Camera includes built-in safety features like obstacle detection, return-to-home (RTH), and flight zone restrictions to ensure that your flights are safe and secure. LICENSED APPLICATION END USER LICENSE AGREEMENT: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Take your drone experience to new heights! Download DJI Fly Go 4: Drone Mobile Camera now and explore endless aerial possibilities!
Screenshots
Verdict
The clearest difference is rating: Fly Go 4 at 4.1 against SIMREX FLY's 1.8. Fly Go 4 also leads on review sentiment (36% vs 6%). SIMREX FLY's advantage is in-app purchases (none vs 8) and ads (none vs shown). On price, ratings volume, update cadence and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Fly Go 4 sells 8 in-app purchases, starting at $7.99 per 7 days. SIMREX FLY asks for nothing beyond the download.
Fly Go 4 holds the better App Store score, 4.1 against 1.8. Both are backed by a comparable volume of ratings — 37 and 100 respectively. Written reviews point the same way: 6% of SIMREX FLY's written reviews are positive against 36% of Fly Go 4's.
SIMREX FLY ships an update fortnightly, Fly Go 4 every 4 weeks. The most recent releases landed on July 7, 2026 and September 21, 2026 respectively.
| Parameter | SIMREX FLY | Fly Go 4 |
|---|---|---|
| Price | Free | Free |
| Rating | 1.8 (37 ratings) | 4.1 (100 ratings) — better |
| Positive reviews | 5.6% of reviews | 35.7% of reviews — better |
| Number of ratings | 37 | 100 — better |
| Update frequency | Fortnightly — better | Every 4 weeks |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 11.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 62 MB | 192 MB |
| Age rating | 4+ | 4+ |
| Developer | Shenzhen Jiandanzhijie Technology Co., Ltd. | COOLDEV CO., LTD |
Customer experience
SIMREX FLY
Fly Go 4
In-app purchases
SIMREX FLY
No in-app purchases
Fly Go 4
- Weekly Standard$7.997 Days
- Monthly$9.991 Month
- Monthly3 Days trial$9.991 Month
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- Yearly$39.991 Year
- Yearly3 Days trial$39.991 Year
- Yearly One-time Discount$45.491 Year
- Lifetime One-time Discount$49.99
- Lifetime$69.99









