# SIMREX FLY vs Heygelo Sirius

The clearest difference is review sentiment: Heygelo Sirius at 67% against SIMREX FLY's 6%. Heygelo Sirius also leads on rating (3.8 vs 1.8). SIMREX FLY's advantage is update cadence (fortnightly vs every 5 weeks). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

Heygelo Sirius holds the better App Store score, 3.8 against 1.8. Both are backed by a comparable volume of ratings — 40 and 21 respectively. Written reviews point the same way: 6% of SIMREX FLY's written reviews are positive against 67% of Heygelo Sirius's.

SIMREX FLY ships an update fortnightly, Heygelo Sirius every 5 weeks. Both last shipped on November 3, 2026.

## The numbers

| Metric | SIMREX FLY | Heygelo Sirius |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.8 (40 ratings)](https://appshunter.io/ios/app/simrex-fly/id1532882122/reviews) | **[3.8 (21 ratings)](https://appshunter.io/ios/app/heygelo-sirius/id1634555924/reviews)** |
| Number of ratings | **40** | 21 |
| Positive reviews | 5.6% of reviews | **66.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 5 weeks |
| Monetization | Free | Free |
| Size | 62 MB | 125 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Jiandanzhijie Technology Co., Ltd.](https://appshunter.io/developer/1543327488) | [军年 陈](https://appshunter.io/developer/1309410176) |

## What reviewers say

### SIMREX FLY

[App page](https://appshunter.io/ios/app/simrex-fly/id1532882122)

Control your smart drone with this app. It enables real-time image and flight data transmission between your mobile device and the drone. Features include GPS status, coordinate display, battery monitoring, and various flight modes like waypoint planning and follow.

**Highlights:** Real-time image and flight data transmission, GPS status and coordinate display, Battery power monitoring with auto-return, Manual joystick operation, Waypoint planning, follow, and orbit flight modes, Camera parameter settings for shooting and recording, One-key take-off, landing, and return to home

**Features:** macOS Compatibility

**In-app purchases:** none


### Heygelo Sirius

[App page](https://appshunter.io/ios/app/heygelo-sirius/id1634555924)

Control a four-axis aircraft remotely using your iPhone. View real-time video from the aircraft's camera and record photos and videos directly to your device.

**Highlights:** Remote aircraft control, Real-time video streaming, Photo capture, Video recording, WiFi video transmission

**In-app purchases:** none


## Frequently asked questions

### Is SIMREX FLY free?

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

### Is Heygelo Sirius free?

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

### Which has better reviews, SIMREX FLY or Heygelo Sirius?

Heygelo Sirius is rated higher. SIMREX FLY averages 1.8 out of 5 from 40 ratings, while Heygelo Sirius averages 3.8 from 21 ratings.

### Do SIMREX FLY or Heygelo Sirius have ads?

Neither SIMREX FLY nor Heygelo Sirius shows ads.

### Which is updated more often, SIMREX FLY or Heygelo Sirius?

SIMREX FLY ships an update fortnightly, and Heygelo Sirius every 5 weeks. Most recently, SIMREX FLY was updated on November 3, 2026 and Heygelo Sirius on November 3, 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.*