# Brinno DUO vs Compare Faces

The clearest difference is price: Brinno DUO at Free against Compare Faces's $2.99. Brinno DUO also leads on update cadence (every 3 months vs every 7 months) and ratings volume (4 vs 1). Compare Faces's advantage is rating (3.0 vs 2.0) and chart position (#198 vs unranked). On review sentiment, ads, in-app purchases and device support there is nothing between them.

Brinno DUO is free to download; Compare Faces costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Compare Faces holds the better App Store score, 3.0 against 2.0. Both are backed by a comparable volume of ratings — 4 and 1 respectively. Written reviews complicate that: 4% of Brinno DUO's written reviews are positive against 0% of Compare Faces's, so the app with the better star average is not the one people write more warmly about.

Brinno DUO ships an update every 3 months, Compare Faces every 7 months. The most recent releases landed on November 2, 2026 and November 12, 2026 respectively.

## The numbers

| Metric | Brinno DUO | Compare Faces |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | [2.0 (4 ratings)](https://appshunter.io/ios/app/brinno-duo/id1381185131/reviews) | **[3.0 (1 ratings)](https://appshunter.io/ios/app/compare-faces/id6450847204/reviews)** |
| Number of ratings | **4** | 1 |
| Positive reviews | **3.8% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 7 months |
| Monetization | **Free** | Paid |
| Best chart rank | — | **#198** |
| Size | 20 MB | 47 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Brinno Incorporated](https://appshunter.io/developer/992403090) | [Pietro Garosi](https://appshunter.io/developer/1670501256) |

## What reviewers say

### Brinno DUO

[App page](https://appshunter.io/ios/app/brinno-duo/id1381185131)

This app allows you to view live and recorded footage from your Brinno DUO door camera. It supports simultaneous viewing on the camera's built-in screen and the app, and can send email alerts with photos when motion is detected or the door is knocked on.

**Highlights:** View live camera feed, Access recorded footage, Receive motion/knock alerts, Simultaneous screen and app access, Email photo alerts, SD card recording

**Features:** macOS Compatibility

**In-app purchases:** none


### Compare Faces

[App page](https://appshunter.io/ios/app/compare-faces/id6450847204)

**Currently charting:** #198 Top Paid · Photo & Video (US App Store)

This app uses advanced algorithms to compare two faces and provide detailed similarity metrics. It prioritizes user privacy by not storing any images on its servers. The interface is designed for ease of use, offering fast and accurate results.

**Highlights:** Accurate face comparison, Advanced algorithms, Confidence and similarity metrics, User-friendly interface, Complete privacy, No image storage

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

**In-app purchases:** none


## Frequently asked questions

### Is Brinno DUO free?

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

### Is Compare Faces free?

Compare Faces costs $2.99, with no in-app purchases.

### Which has better reviews, Brinno DUO or Compare Faces?

Compare Faces is rated higher. Brinno DUO averages 2.0 out of 5 from 4 ratings, while Compare Faces averages 3.0 from 1 ratings.

### Do Brinno DUO or Compare Faces have ads?

Neither Brinno DUO nor Compare Faces shows ads.

### Which is updated more often, Brinno DUO or Compare Faces?

Brinno DUO ships an update every 3 months, and Compare Faces every 7 months. Most recently, Brinno DUO was updated on November 2, 2026 and Compare Faces on November 12, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*