# Fermax DuoxMe vs Vínculo

The clearest difference is update cadence: Vínculo at every 3 days against Fermax DuoxMe's monthly. Vínculo also leads on iOS requirement (15.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Fermax DuoxMe sells 2 in-app purchases, starting at $2.00 per month and Vínculo sells 4 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Fermax DuoxMe ships an update monthly, Vínculo every 3 days. The most recent releases landed on October 24, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Fermax DuoxMe | Vínculo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (263 ratings)](https://appshunter.io/ios/app/fermax-duoxme/id1442204916/reviews)** | — |
| Number of ratings | **263** | — |
| Positive reviews | 55.1% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 150 MB | 9 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Fermax](https://appshunter.io/developer/891332024) | [DAVID VILCHEZ SANCHEZ](https://appshunter.io/developer/6807029565) |

## What reviewers say

### Fermax DuoxMe

[App page](https://appshunter.io/ios/app/fermax-duoxme/id1442204916)

Control your Fermax video door entry system remotely. Answer calls, open doors, and check visitors from anywhere in the world. Share digital keys securely with family and friends, simplifying access to your home.

**Highlights:** Answer video door calls remotely, Open doors instantly, Check visitor history, Share digital keys, Connect via Wi-Fi monitor or Fermax CONNECT

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Monthly | $2.00 | per month |
| Unlimited annual | $17.00 | per year |


### Vínculo

[App page](https://appshunter.io/ios/app/vinculo/id6809566063)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO Individual – Monthly | $3.99 | per month |
| PRO Family – Monthly | $6.99 | per month |
| PRO Individual – Yearly | $34.99 | per year |
| PRO Family – Yearly | $49.99 | per year |


## Frequently asked questions

### Is Fermax DuoxMe free?

Fermax DuoxMe is free to download, with in-app purchases available.

### Is Vínculo free?

Vínculo is free to download, with in-app purchases available.

### Do Fermax DuoxMe or Vínculo have ads?

Neither Fermax DuoxMe nor Vínculo shows ads.

### Which is updated more often, Fermax DuoxMe or Vínculo?

Fermax DuoxMe ships an update monthly, and Vínculo every 3 days. Most recently, Fermax DuoxMe was updated on October 24, 2026 and Vínculo on October 26, 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.*