# Optimal Authenticator vs SG PLUG

The clearest difference is rating: SG PLUG at 4.8 against Optimal Authenticator's 3.0. SG PLUG also leads on ratings volume (309 vs 4) and review sentiment (13% vs 0%). On price, ads, 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.

SG PLUG holds the better App Store score, 4.8 against 3.0. That said, the two scores are not equally well evidenced: SG PLUG has 309 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 0% of Optimal Authenticator's written reviews are positive against 13% of SG PLUG's.

## The numbers

| Metric | Optimal Authenticator | SG PLUG |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (4 ratings)](https://appshunter.io/ios/app/optimal-authenticator/id1217402923/reviews) | **[4.8 (309 ratings)](https://appshunter.io/ios/app/sg-plug/id1434008302/reviews)** |
| Number of ratings | 4 | **309** |
| Positive reviews | 0.0% of reviews | **12.5% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Monetization | Free | Free |
| Size | 80 MB | 67 MB |
| Requires iOS | 15.0 | **8.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Optimal IdM](https://appshunter.io/developer/1050742329) | [National Broom Company of California, Inc.](https://appshunter.io/developer/1260889463) |

## What reviewers say

### Optimal Authenticator

[App page](https://appshunter.io/ios/app/optimal-authenticator/id1217402923)

This app provides a secure way to verify your identity for accessing other applications. It uses two-factor authentication via push notifications or verification codes, and allows organizations to register trusted devices for sign-in requests.

**Highlights:** Two-factor authentication, Push notification verification, On-app verification codes, Trusted device registration, Secure identity verification

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

**In-app purchases:** none


### SG PLUG

[App page](https://appshunter.io/ios/app/sg-plug/id1434008302)

This app provides secure, comfortable, and environmentally friendly intelligent products. It focuses on creating meaningful, creative, and safe solutions to enhance daily life through technology.

**Highlights:** Secure intelligent products, Comfortable living solutions, Environmentally friendly technology, Meaningful product design, Creative product development

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Optimal Authenticator free?

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

### Is SG PLUG free?

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

### Which has better reviews, Optimal Authenticator or SG PLUG?

SG PLUG is rated higher. Optimal Authenticator averages 3.0 out of 5 from 4 ratings, while SG PLUG averages 4.8 from 309 ratings.

### Do Optimal Authenticator or SG PLUG have ads?

Neither Optimal Authenticator nor SG PLUG shows ads.

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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.*