# HSS2 FPV vs iSIU

The clearest difference is update cadence: iSIU at daily against HSS2 FPV's every 2 months. HSS2 FPV's advantage is iOS requirement (10.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

HSS2 FPV ships an update every 2 months, iSIU daily. The most recent releases landed on October 20, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | HSS2 FPV | iSIU |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (157 ratings)](https://appshunter.io/ios/app/hss2-fpv/id1267249506/reviews)** | — |
| Number of ratings | **157** | — |
| Positive reviews | 54.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Daily** |
| Monetization | Free | — |
| Size | 71 MB | 61 MB |
| Requires iOS | **10.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [HOLY STONE TECHNOLOGY Co.,Ltd.](https://appshunter.io/developer/1471499018) | [Green Grid Inc.](https://appshunter.io/developer/1715784766) |

## What reviewers say

### HSS2 FPV

[App page](https://appshunter.io/ios/app/hss2-fpv/id1267249506)

Control a toy quadrocopter using your device over Wi-Fi. Stream real-time video directly from the drone for an immersive flying experience.

**Highlights:** Wi-Fi quadrocopter control, Real-time video transfer, Drone piloting, FPV experience

**In-app purchases:** none

**What reviewers like**

- 👍 Drone is fun to fly
- 👍 Camera quality is good
- 👍 Easy to use for beginners
- 👍 Responsive drone controls
- 👍 App organizes photos/videos

**What reviewers complain about**

- 🐛 App connection issues
- 🐛 Incompatible with iPhones
- 🐛 App requires location services
- 🐛 Confusing app interface
- 🐛 Drone shuts off mid-air

**Reported bugs**

- App not connecting to drone
- App not connecting via Wi-Fi
- App only working for Android
- App bug with location services
- App not connecting with iPhones

**Requested features**

- Add screen rotation option
- Link to website for button explanations
- Add percentage to charging bar
- More support and instructions for icons
- Explain how to do flips with app controller


### iSIU

[App page](https://appshunter.io/ios/app/isiu/id6471646259)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HSS2 FPV free?

HSS2 FPV is free to download, with no in-app purchases.

### Is iSIU free?

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

### Do HSS2 FPV or iSIU have ads?

Neither HSS2 FPV nor iSIU shows ads.

### Which is updated more often, HSS2 FPV or iSIU?

HSS2 FPV ships an update every 2 months, and iSIU daily. Most recently, HSS2 FPV was updated on October 20, 2026 and iSIU on September 29, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*