RADXFLY vs HS Sirius
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RADXFLY
Control your flying toy and experience the thrill of flight with real-time camera transmission to your phone. Capture stunning aerial photos and videos with intuitive controls.
- Real-time camera feed
- Flying toy control
- Aerial photography
- Video recording
- Intuitive controls
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Through this App RADXFLY, we can control our flying toy as much as possible. The camera on the plane can transmit images to the mobile phone in real time, and let us experience the feeling of flying! Allowing users to shoot better photos.
HS Sirius
Control your drone for aerial photography with this app. It offers features like smart takeoff/landing, trajectory flight, and HD live video transmission to help you capture stunning shots.
- Drone control via USB
- Smart takeoff and landing
- Precise trajectory flight
- HD real-time video transmission
- Aerial photography tools
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Unleash your aerial photography potential! HS Sirius is an app specially designed for aerial photography enthusiasts, perfectly complementing your drone experience. Connect via USB and take instant control of your drone, letting your creativity soar. Packed with powerful features including smart takeoff and landing, precise trajectory flight, and HD real-time video transmission, this app is your ultimate companion for creating stunning aerial shots. Whether you're a professional photographer or a novice enthusiast, HS Sirius is here to empower your creativity. Download now and embark on your aerial photography journey! Please give us any feedback! America: usa@holystone.com Europe: eu@holystone.com Canada: ca@holystone.com Japan: jp@holystone.com Wholesale: wholesale@holystone
Screenshots
Verdict
The clearest difference is rating: HS Sirius at 3.7 against RADXFLY's 2.2. HS Sirius also leads on review sentiment (71% vs 40%). On price, ratings volume, update cadence and ads 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.
HS Sirius holds the better App Store score, 3.7 against 2.2. Both are backed by a comparable volume of ratings — 26 and 11 respectively. Written reviews point the same way: 40% of RADXFLY's written reviews are positive against 71% of HS Sirius's.
Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 13, 2026 and October 20, 2026 respectively.
| Parameter | RADXFLY | HS Sirius |
|---|---|---|
| Price | Free | Free |
| Rating | 2.2 (26 ratings) | 3.7 (11 ratings) — better |
| Positive reviews | 40.0% of reviews | 71.4% of reviews — better |
| Number of ratings | 26 — better | 11 |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 11.0 | 11.0 |
| Further details — not scored | ||
| Size | 111 MB | 146 MB |
| Age rating | 4+ | 4+ |
| Developer | 军年 陈 | HOLY STONE TECHNOLOGY Co.,Ltd. |
Customer experience
RADXFLY
HS Sirius
In-app purchases
RADXFLY
No in-app purchases
HS Sirius
No in-app purchases
