SPECIFIC differences between "SmartThings Classic" (the V2 app) and “SmartThings (Samsung Connect)” (the V3 app)

this thread is intended only as a listing of specific differences between the two apps, not for complaints, suggestions, discussions of design philosophy, bug reports, questions about migration, joke memes or anything else. Just individual feature differences. We originally used the abbreviation STSC for “SmartThings (Samsung Connect)”, but that never caught on, so now we are calling it the V3 app since it came out with the V3 hub. The V3 app is changing rapidly, so feel free to edit this as needed.

The official knowledgebase FAQ is at the following link. Read it. :wink:


The “how to” official articles for the V3 app are at the following link:


There are a lot of individual official how to articles for the V2 app at the official support site, but you could start with the following link. Look for the ones marked “SmartThings classic.”


If you aren’t sure which app you are using now, here’s the FAQ for that:

FAQ: how to tell which version of the SmartThings mobile app that you have

Community discussion thread for all the various complaints, suggestions, discussions of design philosophy, etc. that you are not going to add to this thread is at the following link:

It doesn’t matter whether you put one post per feature different or one post with multiple feature differences, whatever you like. Just remember that things are changing rapidly.

if you can’t figure out which app you should be using, ask in the community discussion thread, not this thread. Seriously, this thread is only to be a listing of differences because all the other threads become so overrun with all those other comments that it’s really hard to find just the simple list. So that’s what this FAQ is for.

You can thank me later. :sunglasses:

@WB70 @Automated_House @slagle @jody.albritton @Brad_ST @Vlad

Major changes in Capabilities for Classic and for the new
Just bought the SmartThings hub...am I installing the right app?
Smartthings new App, Cant get dome siren to work
Important Changes to SmartThings Classic Login System
FAQ: New SmartThings App
Don't delete 'Classic' app if you have Schlage SmartLocks!
Looking to jump from Iris
New App Missing Key Automation Features
Sunset Time Offset Bug - App Crashes
New smart app to link the virtual/simulated garage door device with two actual devices
After IRIS: Day 2 “All Devices Disconnected”
Automation with multiple variables?
Yale conexis l1 and zwave module 2 unlock on arrival at home? Uk
Starting from scratch: help needed (UK)
Nodon Wall Switch works fine in the Smartthings Classic app but not in the Smartthings connect app
Arrival sensor trigger smart home monitor?
Two lousy devices and already fed up!
I used to be able to use the fob sensor to run "Arrive" scene when coming home
Schlage Connect Deadbolt, SmartThings Hub v2 - How to Program from SmartThings?
Getting a Routine to run after a set time only after someone is home?
Motion sensors working but not triggering SHM
GE/Jaco Motion Dimmer Switch (GE 26933) Not working in Samsung Connect
Samsung Apps
Struggling with my first automation
Help with scheduling?
Migrated to Samsung Account - all devices are "unknown" in new app
What version of the app do most people use?
Stuck installing new smart apps
New SmartThings app
V3 Hub can take Custom devices here is the work around
Migration - for users that only ever had a Samsung login, never a SmartThings login
Classic, the NEW app, WebCore --- thoughts
Unable to receive Notifications on IOS
New to Smartthings... which app is best?
Device (with custom DTH) not connecting to Smartthings hub (3rd gen)
Smart Home Monitor on Classic and the New apps
SmartThings starting to feel like Homeseer?
Is it me or does the older ST mobile app still work better than the new one?
Can't connect devices to Samsung connect home pro
New SmartThings App and presence
Video Record (Arlo) when Smart Home Security Alarm Triggered?
Old or New App?
GoControl/LinearLinc Bulbst
Night Mode to Arm Alarm?
Out of the loop - Many errors with new App, Classic app doesn't have my Things
Smartthings New App versus old - Geopresence? Basic routines?
Relationship between ST iOS apps - classic and new
Lock Codes and Unlock in new STSC App
Recurring issue with lost "location information"
Hub V3 - use the old or the new app?
Remotec ZRC-90 Scene Master - Use switch as a toggle
Locks and smart home monitor
Newbee here, looking for some help with Yale YRD240 lock
WebCoRE and the new SmartThings App?
Samsung Connect vs SmartThings Classic Performance
Help needed with new app
Garage door sensor - what's everyone here using?
Classic app and new app don't agree?
ST future with Amazon Show and Google Hub
Using both?
Smart Things step by steps / explanation guides?
Good Night, Good Morning, I'm Back, Goodbye - Editing
New user having New app vs Classic problem
Moving Devices Between Account Locations? (ST added a second “home” just for my TV in the new app)
[SOLVED] Tradfri bulb + new hub & app (V3)
Sunrise/sunset vs motion: how do you control lighting in your home? Do you use scenes?
Migrating to new app - Many issues
New App (NOT CLASSIC) Smart Home Monitor NOT integrating with IDE
Life360 not in the new app?
"SmartThings Classic" vs "SmartThings (Samsung Connect)"
Classic App and New App Discrepencies
Planned Outage for New User Signup in Classic App
Using Both new and old apps
Help with lighting automation
Been away for awhile, need some advice/help with core and/or automations please
[RELEASE CANDIDATE] Jasco/GE Z-Wave Plus On/Off Switch (14291) With Double-Tap and Associations
Mode crosstalk
Help selecting some devices
New SmartThings App (No Routines?)
FAQ: Why can’t I use Geopresence or an Automation to set the alarm state in the new (V3) app? (Updated 1 November 2019–now you can!)
Automate SHM on when Device leaves house? (New app)
Is SmartThings ADT dead? (July 2019) (Lifeshield/Blue by ADT Acquisition and Support comments on EOL)
New App Device Handler - No Home Security System Capabilities!?
Hue motion sensor (use ST hub, but no hue bridge)
First time user very lost in setup: some Arlo questions and general getting started concerns
4 year ST Classic user moved to WIFI hub: how do I get my customizations back?
Where are the routines like goodbye, I'm home in the new app?
Iris Keyfob: how to set up the buttons?
Custom DTHs in the new Samsung Connect app?
FAQ: An Overview of Using Custom Code in SmartThings (SmartThings Classic, Groovy Code)
Boat Alarm System
New Smarthings Layout with 200 devices (Europe)
"SmartThings Classic" vs "SmartThings (Samsung Connect)"
New to Smartthings... got a couple of questions: which app? Color temp bulbs? Google Assistant w/o Home? Preset dimmer?
"SmartThings Classic" vs "SmartThings (Samsung Connect)"
Set to Armed (Away) when Kwikset Locked
Konnected devices and V3 hub?
How do I turn off SHM in the new app?
Door Unlock Automation? How do you reduce security risks?
When will IRIS RTCoA thermostat be supported?
Can I now download and use the new iOS app over the classic app?
Set up automation on new app and it’s not in clalssic app
IRIS remote to disarm alarm on V3 hub?
No SMS, only push for SHM?
Device Handler (classic) vs Device Plugin?
Is the new app done? (Feb 2019)
Smart Things New App
Once again, having to learn from square 1
SHM present inthe classic app but not in the brand new
Mobile Presence Automation Issue
Using both apps? Please share tips and tricks!
SmartThings Hub V2 and V3, which app?
Mobile presence sensor unreliable and not working at times
Is the new app done? (Feb 2019)
New app migration issue
Automations / Modes / New to Smartthings and its not jiving
Is Smartthings worth migrating to new home? (UK)
Classic vs New V3 Android App?
I have never seen support this bad (April 2019)
Auto Unlock front door, set lights and
NST Manager with New Smartthings App

As of this writing Samsung smart appliances and Samsung smart televisions only work with The new V3 app, not the V2 Classic.


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As of this writing, no custom DTHs work with the new V3 app, only the V2 Classic app. So support is telling some brand new customers who want to use devices like Keen vents that they need to also install classic in order to use those devices.

Updated 26 August 2018

Some custom DTHs will now work with the V3 app, but they may require modification. See the following discussion thread:

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The “automations” (rules engines) for the two apps are quite different. For example, there is nothing labeled “routines” in the V3 app, it’s just combined in with the other automations. The triggers and events available are also different. And as of November 2019, the rules engine in the V3 app now has a number of features which are not available in the V2 classic app.

If you are using either app and you can’t figure out how to set up a specific rule, it may be that you will need to use the other one. Ask in the community discussion thread.

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Scenes are quite different in the new V3 app and the V2 classic. The ones in V3 can include more device types and more settings and can be associated with a widget. Initially scenes created through classic did not show up in V3, but it appears that as of April 17 they do.

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Previously, you could not create a location which did not have a hub. However, with the new V3 app quite a few people may have locations without a hub, particularly people who only have appliances.

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Classic “Modes” are different than classic “smart home monitor armed states” and that created a lot of confusion.

They are still different in The new V3 app, but they have new names:

Location.mode ( The old “Mode” in classic) and
Security.mode (The old SHM armed state in classic)

The rules engine in the V3 app appears to treat these somewhat differently than classic did as well as just having name changes.

And just to make sure everyone stays confused, the V3 app also offers “secure mode” as a toggle, which has nothing to do with security.mode or location.mode. It’s a technical zigbee feature, previously called “insecure rejoin.”

V3 app FAQ for this feature:


The old FAQ for this feature, which would apply to those using classic even though there’s nothing in the classic app that lets you access it, you have to access it through the IDE.



Grouping lights in The new V3 app is much improved over the 2017 version of classic. In particular, it’s much easier to set up dimmers to work in sync with each other.


quick way to tell which app you are using…

SmartThings Classic uses the following logo:

STSC uses the following logo:


The android version of the V3 app will require that you give it permission to access your contact book. The iOS version does not require this, and classic does not require this.

This thread is not the place to argue about whether that’s a good thing or not, we are just listing the difference here. For discussion of this particular feature, see:

Originally There was no tablet version of the new V3 app , you could not even download it on a tablet. However, @Automated_House notes below that as of 20 April at least the newest iOS version can now run on a tablet.

Classic will run on a tablet.

Bixby (Samsung’s voice assistant) works with the V3 app but does not work with classic. Samsung would like you to use this a lot. The Bixby features are only available on some Samsung galaxy phones.

For help with Bixby, contact Samsung support, not SmartThings support:

The official “supported devices” list is different between V3 and classic. Most of the cloud cloud integration is added in 2019 will only work with the V3 app. Some of the older hub-based integrations will only work with classic.

The technical team has said they hope to eventually move everything over, but for now, don’t be surprised if support tells you you have to install one or the other app version in order to use a particular brand/model of a device even if it officially “works with SmartThings.”

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You can individually temporarily disable automations in the new V3 app. There is no simple way to do this in classic, although there are a lot of different workarounds.


“Cloud Control” is an on/off toggle in the android version of the V3 app. It is not available for iOS or classic.


The android version of the V3 app will allow you to toggle Bluetooth off, but note that this applies to Bluetooth on your phone, not Bluetooth on your hub. The Bluetooth radio in the hub is still inactive. This toggle is not available for iOS or classic.


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The V3 app offers much more Control over when notifications appear on your phone, at least for android:

Classic allows you to set up widgets for routines on your phone or the Apple watch.

The V3 app does not have routines that are distinct from automations. And does not appear to have widgets for automations. But it does have widgets for scenes as of November 2019.

As of this writing, you will need the V3 app to set up the Wi-Fi features on the “Samsung Connect Home WiFi mesh router.” Classic does not give you access to these settings.

Note that this router is sold under different names in different countries.

You must have a Samsung account to use the new V3 app. As of this writing, customers could use either a Samsung account or a smartthings account with classic, but the intention is to phase out the SmartThings accounts and move everyone over to Samsung accounts at some point in the future.