# HMI Viewer vs UniFi Verify

The clearest difference is price: UniFi Verify at Free against HMI Viewer's $0.99. UniFi Verify also leads on ratings volume (12K vs 4). HMI Viewer's advantage is iOS requirement (15.0 vs 17.0). On rating, update cadence, ads and in-app purchases there is nothing between them.

UniFi Verify is free to download; HMI Viewer costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for HMI Viewer against 4.9 for UniFi Verify. That said, the two scores are not equally well evidenced: UniFi Verify has 12K ratings behind it against 4, so its average is the more settled of the two.

HMI Viewer ships an update every 2 months, UniFi Verify every 3 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | HMI Viewer | UniFi Verify |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/hmi-viewer/id1261910446/reviews)** | [4.9 (12K ratings)](https://appshunter.io/ios/app/unifi-verify/id1499320261/reviews) |
| Number of ratings | 4 | **12K** |
| Positive reviews | — | 34.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Paid | **Free** |
| Size | 17 MB | 63 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Greg Maendel](https://appshunter.io/developer/507756979) | [Ubiquiti Inc.](https://appshunter.io/developer/683620863) |

## What reviewers say

### HMI Viewer

[App page](https://appshunter.io/ios/app/hmi-viewer/id1261910446)

This application allows end users to interact with PLC-controlled processes through custom-designed Human Machine Interfaces. Integrators can create and deploy these interfaces securely, enabling seamless control and monitoring of industrial systems.

**Highlights:** View-only HMI interface, Interact with PLC-controlled processes, Secure deployment to end-user devices, Supports major PLC brands, Native application performance

**Features:** Vision Pro support

**In-app purchases:** none


### UniFi Verify

[App page](https://appshunter.io/ios/app/unifi-verify/id1499320261)

Enhance account security with two-factor authentication. This app generates time-sensitive codes and single-use passwords for logins, providing an extra layer of protection against unauthorized access. It supports multiple accounts across various platforms.

**Highlights:** Two-factor authentication (2FA), Time-sensitive verification codes, Single-use passwords, Instant QR code setup, Supports multiple accounts and platforms, Push notification codes

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases:** none

**What reviewers like**

- 🚀 Great experience for 2FA
- 🚀 Easy to use
- 🚀 Fantastic experience
- 🚀 Solid tech
- 🚀 Works well

**What reviewers complain about**

- 🐛 Waste of time
- 🐛 Poor instructions
- 🐛 Going around in circles
- 🐛 DOES NOT WORK
- 🐛 Why?

**Reported bugs**

- Notifications going haywire
- Loses accounts during update
- Never sends push notifications
- Doesn't integrate with UI
- Key not recognised

**Requested features**

- Dark mode please
- Push feature and one more thing
- Move UID to replace access as an app so we don't have to login twice


## Frequently asked questions

### Is HMI Viewer free?

HMI Viewer costs $0.99, with no in-app purchases.

### Is UniFi Verify free?

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

### Which has better reviews, HMI Viewer or UniFi Verify?

HMI Viewer is rated higher. HMI Viewer averages 5.0 out of 5 from 4 ratings, while UniFi Verify averages 4.9 from 12K ratings.

### Do HMI Viewer or UniFi Verify have ads?

Neither HMI Viewer nor UniFi Verify shows ads.

### Which is updated more often, HMI Viewer or UniFi Verify?

HMI Viewer ships an update every 2 months, and UniFi Verify every 3 months. Most recently, HMI Viewer was updated on October 24, 2026 and UniFi Verify on October 24, 2026.

---

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