# CSJ GPS PRO vs Yi iot +

The clearest difference is rating: Yi iot + at 4.1 against CSJ GPS PRO's 3.0. Yi iot + also leads on ratings volume (907 vs 1) and review sentiment (9% vs 0%). CSJ GPS PRO's advantage is in-app purchases (none vs 2) and update cadence (fortnightly vs every 6 weeks). On price and ads there is nothing between them.

Both are free to download. Yi iot + sells 2 in-app purchases, starting at $4.99 per 7 days. CSJ GPS PRO asks for nothing beyond the download.

Yi iot + holds the better App Store score, 4.1 against 3.0. That said, the two scores are not equally well evidenced: Yi iot + has 907 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of CSJ GPS PRO's written reviews are positive against 9% of Yi iot +'s.

CSJ GPS PRO ships an update fortnightly, Yi iot + every 6 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | CSJ GPS PRO | Yi iot + |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (1 ratings)](https://appshunter.io/ios/app/csj-gps-pro/id1468088745/reviews) | **[4.1 (907 ratings)](https://appshunter.io/ios/app/yi-iot-plus/id6752410463/reviews)** |
| Number of ratings | 1 | **907** |
| Positive reviews | 0.0% of reviews | **9.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 6 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 240 MB | 24 MB |
| Requires iOS | **12.0** | 17 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [元明 苏](https://appshunter.io/developer/1429356686) | [Joshua Jarvis](https://appshunter.io/developer/6803155644) |

## What reviewers say

### CSJ GPS PRO

[App page](https://appshunter.io/ios/app/csj-gps-pro/id1468088745)

This application is designed to control CSJ series unmanned aircraft. It features advanced technologies like GPS waypoint navigation, GPS orbit, GPS follow, and AI recognition for innovative flight control.

**Highlights:** GPS waypoint navigation, GPS orbit mode, GPS follow mode, AI recognition, Unmanned aircraft control

**Features:** macOS Compatibility

**In-app purchases:** none


### Yi iot +

[App page](https://appshunter.io/ios/app/yi-iot-plus/id6752410463)

Detect and identify unfamiliar electronic devices and hidden lenses nearby. Gain peace of mind in various locations like hotels, offices, or public spaces by understanding your surroundings.

**Highlights:** Wireless device detection (Bluetooth/Wi-Fi), Infrared lens scanner, Smart scan modes, Fast and easy to use interface, Ideal for travel privacy checks

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premuim | $4.99 | per 7 days |
| Get Premuim | $4.99 | per 7 days |


## Frequently asked questions

### Is CSJ GPS PRO free?

CSJ GPS PRO is free to download, with no in-app purchases.

### Is Yi iot + free?

Yi iot + is free to download, with in-app purchases available.

### Which has better reviews, CSJ GPS PRO or Yi iot +?

Yi iot + is rated higher. CSJ GPS PRO averages 3.0 out of 5 from 1 ratings, while Yi iot + averages 4.1 from 907 ratings.

### Do CSJ GPS PRO or Yi iot + have ads?

Neither CSJ GPS PRO nor Yi iot + shows ads.

### Which is updated more often, CSJ GPS PRO or Yi iot +?

CSJ GPS PRO ships an update fortnightly, and Yi iot + every 6 weeks. Most recently, CSJ GPS PRO was updated on October 24, 2026 and Yi iot + on October 25, 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.*