# HS Sirius vs HT FLY

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.

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.

## The numbers

| Metric | HS Sirius | HT FLY |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (10 ratings)](https://appshunter.io/ios/app/hs-sirius/id6478848481/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 71.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Free | — |
| Size | 146 MB | 168 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [HOLY STONE TECHNOLOGY  Co.,Ltd.](https://appshunter.io/developer/1471499018) | [元明 苏](https://appshunter.io/developer/1320752705) |

## What reviewers say

### HS Sirius

[App page](https://appshunter.io/ios/app/hs-sirius/id6478848481)

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.

**Highlights:** Drone control via USB, Smart takeoff and landing, Precise trajectory flight, HD real-time video transmission, Aerial photography tools

**Features:** macOS Compatibility

**In-app purchases:** none


### HT FLY

[App page](https://appshunter.io/ios/app/ht-fly/id6547848122)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HS Sirius free?

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

### Is HT FLY free?

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

### Do HS Sirius or HT FLY have ads?

Neither HS Sirius nor HT FLY shows ads.

### Which is updated more often, HS Sirius or HT FLY?

HS Sirius ships an update every 3 weeks, and HT FLY monthly. Most recently, HS Sirius was updated on July 6, 2026 and HT FLY on September 10, 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.*