INREII vs SDFly
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
INREII
This app enables real-time infrared video preview, photo and video capture, and file management. It allows for FTP access, WiFi parameter configuration, and firmware updates. The app also provides product recommendations and supports automatic language switching.
- Real-time infrared video preview
- Capture photos and videos
- Local file preview and management
- FTP file access
- WiFi parameter settings
- Device firmware updates
- Automatic language switching
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(1) Infrared video of real-time preview display device; (2) Take photos, videos, local previews, file management and sharing of video streams; (3) Access the FTP file of the management device; (4) Set WiFi parameters; (5) Get device upgradeable firmware via network, and upgrade the device WiFi firmware through App; (6) Get more product recommendations, categories, and dynamics on the Internet; (7) Automatically switch between Chinese and English versions according to the phone language. (8) Can feedback user's usage information (9) Obtain the user's infrared device information and perform background statistics
SDFly
Control your drone with live HD viewing, adjust camera and gimbal settings, and plan complex flight missions. Share your aerial footage through live streaming on popular platforms. Supports joint operations with multiple devices.
- Live HD viewing
- Live HD streaming
- Aircraft and gimbal control
- Mission planning
- Various flight modes
- Multi-device connection
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SDFly is whole new flight App designed by SwellPro. It marks the new era for SwellPro. SDFly allows SwellPro pilots to do live HD viewing; adjust aircraft, gimbal, and camera specs; proceed mission planning (include route planning and grid flight planning); do live streaming and sharing aerial footage. This App currently supports the SplashDrone 4. Features: - Live HD viewing - Live HD streaming of the great aerial view on various streaming platform includes Twitch, TikTok - Adjust camera Pro setting - Control aircraft and gimbal - Various flight mode selection (sport, cruise, orbit, headless+) - Mission planning - route planning, grid flight planning, tap to flight, orbit mode - Convenient aerial photos & videos viewing, download, and sharing - Joint operation. SplashDrone 4 supports multi mobile devices connection for up to 4 devices
Screenshots
Verdict
The clearest difference is rating: SDFly at 2.3 against INREII's 2.0. SDFly also leads on update cadence (every 3 weeks vs every 2 months). INREII's advantage is ratings volume (36 vs 11). On price, review sentiment, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
SDFly holds the better App Store score, 2.3 against 2.0. Both are backed by a comparable volume of ratings — 36 and 11 respectively. Written reviews complicate that: 23% of INREII's written reviews are positive against 20% of SDFly's, so the app with the better star average is not the one people write more warmly about.
INREII ships an update every 2 months, SDFly every 3 weeks. The most recent releases landed on October 19, 2026 and October 12, 2026 respectively.
| Parameter | INREII | SDFly |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (36 ratings) | 2.3 (11 ratings) — better |
| Positive reviews | 23.4% of reviews — better | 20.0% of reviews |
| Number of ratings | 36 — better | 11 |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 64 MB | 40 MB |
| Age rating | 9+ | 4+ |
| Developer | InfiRay Technologies Co.,Ltd. | Shenzhen SwellPro Technology Co.,LTD |
Customer experience
INREII
SDFly
Bugs and requests
INREII
Reported bugs
24 issues- App crashes on startup
- Connection between device and speed is bad
- Finding and downloading videos and pictures is terrible
- App not working on iPhone 16 Pro Max with iOS 26
- App won't connect to scope after last update
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- Videos and pictures cannot be loaded
- App not working on Android and iOS
- App is super glitchy, doesn't work half the time
- Custom reticle needs more options and editing without scope connection
- Ballistics on the app not available for some users
- Custom reticle needs to be set up every time optic is turned on
- Shop tab is broken
- Videos not displaying, app closes when trying to view
- Firmware update not available or not working
- RH-25 and FH35R not listed in the app
- Most features and functionality don't work with RH25
- Videos and photos not recorded with the app cannot be viewed or saved
- Connection crashes 8-10 seconds into taking a video
- App not launching or immediately crashing
- App doesn't work even after changing font size
- App freezes on Terms & Conditions screen
- Connection established but device not recognized
- Firmware update cannot be performed
- Photos/videos cannot be transferred
Requested features
14 requests- Add payment options for custom reticles (beyond PayPal)
- Improve custom reticle options and editing
- Allow editing custom reticles without device connection
- Add more reticle options and colors
- Improve app setup options for the scope
Show 9 moreShow fewer
- Add ability to set up laser rangefinder from app
- Keep shooting reticle on while moving rangefinder reticle
- Add ballistics app integration or development
- Add Russian language support
- Add support for GENI devices
- Add support for RH-25 and FH35R devices
- Improve user experience and interface
- Fix broken 'Shop' tab
- Make custom reticles save as extra reticles
SDFly
Not enough reviews yet to summarise bugs or requests.
In-app purchases
INREII
No in-app purchases
SDFly
No in-app purchases
