# Author ID vs SymphonyLight

The clearest difference is rating: Author ID at 3.6 against SymphonyLight's 2.2. Author ID also leads on iOS requirement (9.0 vs 11.4). SymphonyLight's advantage is update cadence (monthly vs every 7 months) and ratings volume (106 vs 9). On price, review sentiment, 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.

Author ID holds the better App Store score, 3.6 against 2.2. That said, the two scores are not equally well evidenced: SymphonyLight has 106 ratings behind it against 9, so its average is the more settled of the two. Written reviews split almost evenly too, at 22% and 23% positive.

Author ID ships an update every 7 months, SymphonyLight monthly. The most recent releases landed on September 22, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Author ID | SymphonyLight |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.6 (9 ratings)](https://appshunter.io/ios/app/author-id/id1144594689/reviews)** | [2.2 (106 ratings)](https://appshunter.io/ios/app/symphonylight/id1579153131/reviews) |
| Number of ratings | 9 | **106** |
| Positive reviews | 21.9% of reviews | **22.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Monthly** |
| Monetization | Free | Free |
| Size | 29 MB | 41 MB |
| Requires iOS | **9.0** | 11.4 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [AUTHOR-ALARM](https://appshunter.io/developer/1344731145) | [ShenZhen Lenze Technology Co,.Ltd.](https://appshunter.io/developer/1190864538) |

## What reviewers say

### Author ID

[App page](https://appshunter.io/ios/app/author-id/id1144594689)

Transform your smartphone into a key fob for your vehicle's anti-theft system. Easily activate and deactivate security features remotely. Compatible with specific models of AUTHOR Alarm systems.

**Highlights:** Use smartphone as key fob, Activate security system, Deactivate security system, Compatible with AUTHOR Alarm systems, Remote control for vehicle security

**Features:** macOS Compatibility

**In-app purchases:** none


### SymphonyLight

[App page](https://appshunter.io/ios/app/symphonylight/id1579153131)

Control your Bluetooth devices and unlock smart living modes. Enhance your quality of life by managing your connected devices with ease.

**Highlights:** Bluetooth device control, Smart living modes, Enhance quality of life, Connect and manage devices

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

**In-app purchases:** none


## Frequently asked questions

### Is Author ID free?

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

### Is SymphonyLight free?

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

### Which has better reviews, Author ID or SymphonyLight?

Author ID is rated higher. Author ID averages 3.6 out of 5 from 9 ratings, while SymphonyLight averages 2.2 from 106 ratings.

### Do Author ID or SymphonyLight have ads?

Neither Author ID nor SymphonyLight shows ads.

### Which is updated more often, Author ID or SymphonyLight?

Author ID ships an update every 7 months, and SymphonyLight monthly. Most recently, Author ID was updated on September 22, 2026 and SymphonyLight on September 29, 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.*