# CAD eSUA vs 嗖嗖Fly

The clearest difference is review sentiment: 嗖嗖Fly at 100% against CAD eSUA's 14%. 嗖嗖Fly also leads on rating (5.0 vs 1.0) and update cadence (fortnightly vs every 2 months). CAD eSUA's advantage is ads (none vs shown) and iOS requirement (11.0 vs 13.0). On price, ratings volume, in-app purchases and monetization model there is nothing between them.

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

嗖嗖Fly holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews point the same way: 14% of CAD eSUA's written reviews are positive against 100% of 嗖嗖Fly's.

CAD eSUA ships an update every 2 months, 嗖嗖Fly fortnightly. The most recent releases landed on September 10, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | CAD eSUA | 嗖嗖Fly |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/cad-esua/id1568670381/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/fly/id6708228548/reviews)** |
| Number of ratings | 1 | **2** |
| Positive reviews | 14.3% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | Free | Free |
| Size | 53 MB | 124 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Civil Aviation Department](https://appshunter.io/developer/670174039) | [北京安擎智飞科技有限公司](https://appshunter.io/developer/1769867334) |

## What reviewers say

### CAD eSUA

[App page](https://appshunter.io/ios/app/cad-esua/id1568670381)

This application allows users to register small unmanned aircraft (SUA) and obtain remote pilot registration. It serves as a digital platform for compliance with aviation regulations.

**Highlights:** SUA Registration, Remote Pilot Registration, Digital Compliance Platform, Aviation Regulation Tool

**Features:** macOS Compatibility

**In-app purchases:** none


### 嗖嗖Fly

[App page](https://appshunter.io/ios/app/fly/id6708228548)

This app uses advanced algorithms to scan the sky and identify satellite orbits in real-time. It offers a 3D visualization of constellations and allows users to generate personalized posters of their findings. It's designed for users interested in space technology and celestial observation.

**Highlights:** One-click sky scanning, Real-time satellite orbit tracking, 3D constellation visualization, Personalized 'sky scan' posters, Integration with Beidou/GPS data, Optimized scanning algorithms

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is CAD eSUA free?

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

### Is 嗖嗖Fly free?

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

### Which has better reviews, CAD eSUA or 嗖嗖Fly?

嗖嗖Fly is rated higher. CAD eSUA averages 1.0 out of 5 from 1 ratings, while 嗖嗖Fly averages 5.0 from 2 ratings.

### Do CAD eSUA or 嗖嗖Fly have ads?

嗖嗖Fly shows ads; CAD eSUA does not.

### Which is updated more often, CAD eSUA or 嗖嗖Fly?

CAD eSUA ships an update every 2 months, and 嗖嗖Fly fortnightly. Most recently, CAD eSUA was updated on September 10, 2026 and 嗖嗖Fly on September 12, 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.*