# Smartlink Security vs ADT (Alder) Home Security

The clearest difference is rating: Smartlink Security at 2.3 against ADT (Alder) Home Security's 1.9. Smartlink Security also leads on ratings volume (105 vs 11) and update cadence (every 2 months vs every 5 months). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Smartlink Security holds the better App Store score, 2.3 against 1.9. That said, the two scores are not equally well evidenced: Smartlink Security has 105 ratings behind it against 11, so its average is the more settled of the two. Written reviews point the same way: 9% of Smartlink Security's written reviews are positive against 0% of ADT (Alder) Home Security's.

Smartlink Security ships an update every 2 months, ADT (Alder) Home Security every 5 months. The most recent releases landed on October 24, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Smartlink Security | ADT (Alder) Home Security |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.3 (105 ratings)](https://appshunter.io/ios/app/smartlink-security/id1266830174/reviews)** | [1.9 (11 ratings)](https://appshunter.io/ios/app/adt-alder-home-security/id6504260344/reviews) |
| Number of ratings | **105** | 11 |
| Positive reviews | **9.1% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 5 months |
| Monetization | Free | Free |
| Size | 101 MB | 133 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SecureNet Technologies, LLC](https://appshunter.io/developer/890342713) | [ADT LLC](https://appshunter.io/developer/355736426) |

## What reviewers say

### Smartlink Security

[App page](https://appshunter.io/ios/app/smartlink-security/id1266830174)

Manage your home's security, lighting, climate, and cameras from one app. Receive real-time alerts, remotely arm/disarm your system, and monitor live video feeds. Control various connected devices for comprehensive home automation.

**Highlights:** Remote security system control, Real-time alarm status and alerts, Live video monitoring, Event recording for security events, Control lights, locks, and thermostats, Monitor family and pets remotely

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Two-way voice and camera functionality
- 💡 New 'Recipes' feature for event recording
- 👍 Works well with specific systems (e.g., iotega)
- 👍 Responsive and works every time (for some users)

**What reviewers complain about**

- 🐛 Frequent app crashes
- 🐛 App does not open
- 🐛 Login issues (slow, fails, freezes)
- 🐛 Connectivity problems (no connection, disconnects)
- 🐛 App settings reset after updates

**Reported bugs**

- App crashes instantly on opening
- App keeps crashing, forcing reinstallation
- App crashes when trying to disarm
- Login fails with 'Json parser error: Unrecognized token '<''
- Secure Connection Error / No Connection

**Requested features**

- Add text alerts for specific zones
- Allow logging out after closing the app
- Enable push notifications for alarm events
- Improve integration with other security apps (Arlo, SkyBell)
- Add widget for iOS


### ADT (Alder) Home Security

[App page](https://appshunter.io/ios/app/adt-alder-home-security/id6504260344)

Manage your home security and smart devices from anywhere. Receive real-time alerts, control lighting, climate, cameras, and more. Monitor live video feeds and record events for peace of mind.

**Highlights:** Remote system arm/disarm, Real-time alarm alerts, Live video monitoring, Event recording, Smart device control (lights, climate, locks), Instant notifications

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Smartlink Security free?

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

### Is ADT (Alder) Home Security free?

ADT (Alder) Home Security is free to download, with no in-app purchases.

### Which has better reviews, Smartlink Security or ADT (Alder) Home Security?

Smartlink Security is rated higher. Smartlink Security averages 2.3 out of 5 from 105 ratings, while ADT (Alder) Home Security averages 1.9 from 11 ratings.

### Do Smartlink Security or ADT (Alder) Home Security have ads?

Neither Smartlink Security nor ADT (Alder) Home Security shows ads.

### Which is updated more often, Smartlink Security or ADT (Alder) Home Security?

Smartlink Security ships an update every 2 months, and ADT (Alder) Home Security every 5 months. Most recently, Smartlink Security was updated on October 24, 2026 and ADT (Alder) Home Security on October 22, 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.*