# SDCSecurity vs LinenCrew TimeClock

The clearest difference is ads: LinenCrew TimeClock at none against SDCSecurity's shown. LinenCrew TimeClock also leads on update cadence (every 3 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, LinenCrew TimeClock every 3 weeks. The most recent releases landed on September 18, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | SDCSecurity | LinenCrew TimeClock |
| --- | --- | --- |
| 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 3 weeks** |
| Monetization | Ad-supported | — |
| Size | 38 MB | 67 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [SDC Security Door Controls](https://appshunter.io/developer/499401166) | [Nextek Systems Inc](https://appshunter.io/developer/1465078964) |

## 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


### LinenCrew TimeClock

[App page](https://appshunter.io/ios/app/linencrew-timeclock/id6759546051)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SDCSecurity free?

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

### Is LinenCrew TimeClock free?

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

### Do SDCSecurity or LinenCrew TimeClock have ads?

SDCSecurity shows ads; LinenCrew TimeClock does not.

### Which is updated more often, SDCSecurity or LinenCrew TimeClock?

SDCSecurity ships an update every 20 months, and LinenCrew TimeClock every 3 weeks. Most recently, SDCSecurity was updated on September 18, 2026 and LinenCrew TimeClock on September 20, 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.*