Comparison

Smartlink+ vs ADT (Alder) Home Security

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Smartlink+

Control your home security system remotely. Arm/disarm, view live camera feeds, and manage connected devices like locks, lights, and thermostats from your smartphone or smartwatch.

Highlights
  • Remote arm/disarm
  • Live camera feed viewing
  • Smart lock and light control
  • Thermostat adjustment
  • System activity review
  • Customizable alerts
  • Multi-property management
Features
Read full description

Smartlink+ puts your security system in the palm of your hand. Arm and disarm, view live camera feeds, control locks and lights, adjust your thermostat, and review system activity — all from one app. Monitor your property with real-time video, get notified when events happen, and manage every connected device from a single interface. Customize alerts by sensor and device, switch between multiple properties without signing out, and control your system from your Apple Watch.

About

ADT (Alder) Home Security

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
Read full description

When Every Second Counts, Count on ADT. Your security account is transitioning to ADT Security. Like Alder, ADT has been a leader in smart home security for years. We are committed to delivering excellent customer service like you’ve come to expect with Alder. ADT provides innovative smart security solutions to help their customers protect what they value most. Stay connected from anywhere. Control your lighting, climate, cameras, and security anywhere from a single app. Receive real-time alarm status and arm or disarm your security system remotely. Get instant alerts in the event of a security alarm, or simply to be notified when your family arrives home. Live Video Monitoring and Event Recording. Set cameras to automatically record security events in your home. Check in on your family and pets when you can’t be there. See who is at the door, or monitor your premises from multiple cameras at once. Control your Entire Home. Enjoy full interactive home control including lights, locks, cameras, thermostats, garage doors, and other connected devices.

Screenshots

Smartlink+4 screens
ADT (Alder) Home Security4 screens

Verdict

The call

The clearest difference is review sentiment: Smartlink+ at 100% against ADT (Alder) Home Security's 0%. Smartlink+ also leads on rating (5.0 vs 1.9) and update cadence (every 2 months vs every 5 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

Smartlink+ holds the better App Store score, 5.0 against 1.9. Both are backed by a comparable volume of ratings — 4 and 11 respectively. Written reviews point the same way: 100% of Smartlink+'s written reviews are positive against 0% of ADT (Alder) Home Security's.

UpkeepUpdate frequency

Smartlink+ ships an update every 2 months, ADT (Alder) Home Security every 5 months. The most recent releases landed on October 7, 2026 and October 22, 2026 respectively.

Scorecard3 real differences · 7 level
Smartlink+ versus ADT (Alder) Home Security: the parameters behind the verdict, then further details
ParameterSmartlink+ADT (Alder) Home Security
PriceFreeFree
Rating5.0 (4 ratings) — better1.9 (11 ratings)
Positive reviews100.0% of reviews — better0.0% of reviews
Number of ratings411 — better
Update frequencyEvery 2 months — betterEvery 5 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPod, Apple Watch — betteriPhone, iPod
Requires iOS15.015.0
Further details — not scored
Size59 MB133 MB
Age rating4+4+
DeveloperSecureNet Technologies, LLCADT LLC

Customer experience

Smartlink+

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

ADT (Alder) Home Security

All ratings8 ratings
Positive25.0%
Neutral0.0%
Negative75.0%
Written reviews4 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Smartlink+

No in-app purchases

None

ADT (Alder) Home Security

No in-app purchases

Questions

Is Smartlink+ free?
Smartlink+ 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+ or ADT (Alder) Home Security?
Smartlink+ is rated higher. Smartlink+ averages 5.0 out of 5 from 4 ratings, while ADT (Alder) Home Security averages 1.9 from 11 ratings.
Do Smartlink+ or ADT (Alder) Home Security have ads?
Neither Smartlink+ nor ADT (Alder) Home Security shows ads.
Which is updated more often, Smartlink+ or ADT (Alder) Home Security?
Smartlink+ ships an update every 2 months, and ADT (Alder) Home Security every 5 months. Most recently, Smartlink+ was updated on October 7, 2026 and ADT (Alder) Home Security on October 22, 2026.

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