# Multicerta vs DEFCON ONE

The clearest difference is update cadence: Multicerta at monthly against DEFCON ONE's every 6 months. DEFCON ONE's advantage is iOS requirement (11.0 vs 13.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Multicerta ships an update monthly, DEFCON ONE every 6 months. The most recent releases landed on October 8, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Multicerta | DEFCON ONE |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/multicerta/id1406693417/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 46.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 6 months |
| Monetization | Free | — |
| Size | 55 MB | 46 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Netbuilder S.r.l.](https://appshunter.io/developer/1216616203) | [IMG Sicurezza Italia S.R.L.S.](https://appshunter.io/developer/1495771178) |

## What reviewers say

### Multicerta

[App page](https://appshunter.io/ios/app/multicerta/id1406693417)

This app provides a secure and digital way to receive communications from your building administrator. It offers instant delivery of important documents like meeting invitations and rent notices, saving you time and money on postal services and printing. All communications are encrypted for your privacy and accessible anytime through the app or web portal.

**Highlights:** Digital communication system, Legally valid document delivery, Instant delivery of notices and rates, Time and cost savings, Immediate document retrieval, Encrypted communications, Web portal access

**Features:** macOS Compatibility

**In-app purchases:** none


### DEFCON ONE

[App page](https://appshunter.io/ios/app/defcon-one/id1535786389)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Multicerta free?

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

### Is DEFCON ONE free?

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

### Do Multicerta or DEFCON ONE have ads?

Neither Multicerta nor DEFCON ONE shows ads.

### Which is updated more often, Multicerta or DEFCON ONE?

Multicerta ships an update monthly, and DEFCON ONE every 6 months. Most recently, Multicerta was updated on October 8, 2026 and DEFCON ONE on October 6, 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.*