HS Sirius vs HT FLY
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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
HT FLY
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HT FLY is an unmanned aerial vehicle supporting APP with GPS navigation. It is committed to bring users a convenient and stable intelligent aircraft experience. Unmanned aerial vehicles can be controlled through the APP. You can calibrate the gyroscope and compass of the aircraft; Multi-window function; Photo transmission; Video transmission, night scene mode, vertical mode and other operations; GPS flight, waypoint flight, circling flight, fade away, spiral, skyward, etc.
Screenshots
Verdict
HS Sirius and HT FLY are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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 ships an update every 3 weeks, HT FLY monthly. The most recent releases landed on July 6, 2026 and September 10, 2026 respectively.
| Parameter | HS Sirius | HT FLY |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (10 ratings) — better | — |
| Positive reviews | 71.4% of reviews | — |
| Number of ratings | 10 — better | — |
| Update frequency | Every 3 weeks — better | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 146 MB | 168 MB |
| Age rating | 4+ | 12+ |
| Developer | HOLY STONE TECHNOLOGY Co.,Ltd. | 元明 苏 |
In-app purchases
HS Sirius
No in-app purchases
HT FLY
No in-app purchases
