# SDC vs Yi iot +

The clearest difference is rating: SDC at 5.0 against Yi iot +'s 4.1. SDC also leads on in-app purchases (none vs 2) and iOS requirement (10.0 vs 17). Yi iot +'s advantage is update cadence (every 6 weeks vs every 31 months) and ratings volume (912 vs 1). On price, ads and device support there is nothing between them.

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

SDC holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: Yi iot + has 912 ratings behind it against 1, so its average is the more settled of the two.

SDC ships an update every 31 months, Yi iot + every 6 weeks. Both last shipped on October 30, 2026.

## The numbers

| Metric | SDC | Yi iot + |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sdc-alarm/id1631962393/reviews)** | [4.1 (912 ratings)](https://appshunter.io/ios/app/yi-iot-plus/id6752410463/reviews) |
| Number of ratings | 1 | **912** |
| Positive reviews | — | 9.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 31 months | **Every 6 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 11 MB | 24 MB |
| Requires iOS | **10.0** | 17 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [胜 邓](https://appshunter.io/developer/1368398791) | [Joshua Jarvis](https://appshunter.io/developer/6803155644) |

## What reviewers say

### SDC

[App page](https://appshunter.io/ios/app/sdc-alarm/id1631962393)

This utility app transforms your smartphone into a remote control for various functions. It offers features like unlocking, locking, and locating your vehicle. Download it to conveniently manage your car's access and find it easily.

**Highlights:** Remote car unlocking, Remote car locking, Vehicle location finder, Smartphone as remote transmitter

**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 SDC free?

SDC 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, SDC or Yi iot +?

SDC is rated higher. SDC averages 5.0 out of 5 from 1 ratings, while Yi iot + averages 4.1 from 912 ratings.

### Do SDC or Yi iot + have ads?

Neither SDC nor Yi iot + shows ads.

### Which is updated more often, SDC or Yi iot +?

SDC ships an update every 31 months, and Yi iot + every 6 weeks. Most recently, SDC was updated on October 30, 2026 and Yi iot + on October 30, 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.*