# SDCSecurity vs Avigilon Alta Visitor

The clearest difference is ads: Avigilon Alta Visitor at none against SDCSecurity's shown. Avigilon Alta Visitor also leads on update cadence (every 6 weeks vs every 20 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

SDCSecurity ships an update every 20 months, Avigilon Alta Visitor every 6 weeks. The most recent releases landed on June 5, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | SDCSecurity | Avigilon Alta Visitor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/sdcsecurity/id499401163/reviews)** | — |
| Number of ratings | **6** | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 20 months | **Every 6 weeks** |
| Monetization | Ad-supported | — |
| Size | 38 MB | 40 MB |
| Requires iOS | 15.0 | **14** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [SDC Security Door Controls](https://appshunter.io/developer/499401166) | [Invisit, LLC](https://appshunter.io/developer/1738151517) |

## What reviewers say

### SDCSecurity

[App page](https://appshunter.io/ios/app/sdcsecurity/id499401163)

This business application provides comprehensive access and egress solutions for door openings, focusing on security and fire safety. It integrates practical electrical applications for enhanced control and safety.

**Highlights:** Access and egress solutions, Door opening security, Fire and life safety, Electrical application integration, DoorSnap feature

**Features:** macOS Compatibility

**In-app purchases:** none


### Avigilon Alta Visitor

[App page](https://appshunter.io/ios/app/avigilon-alta-visitor/id6480092368)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SDCSecurity free?

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

### Is Avigilon Alta Visitor free?

Avigilon Alta Visitor is free to download, with no in-app purchases.

### Do SDCSecurity or Avigilon Alta Visitor have ads?

SDCSecurity shows ads; Avigilon Alta Visitor does not.

### Which is updated more often, SDCSecurity or Avigilon Alta Visitor?

SDCSecurity ships an update every 20 months, and Avigilon Alta Visitor every 6 weeks. Most recently, SDCSecurity was updated on June 5, 2026 and Avigilon Alta Visitor on September 9, 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.*