This is a partial list of Android apps that are known to work at least somewhat with S2. It is intended to list apps that are significant or representative; it is not intended to list all apps. I'll try to edit/update this post as new info comes in. Some of these are well-known and obvious (gmail), whereas others are pleasant small surprises (for example, when riding the subway my watch buzzed and notified me that I should get off soon at Rockefeller center; I had no idea that Citymapper would work that way with my S2).
There are two general ways the watch interacts with apps: through notifications (turn the bezel counterclockwise), or through a specific watch application installed on the watch.
To get apps to work via notifications, the basic process is 1) run the Samsung Gear app on your phone; 2) select Notifications; 3) select Manage notifications; 4) scroll through the list of apps and select those you would like to communicate with your watch (e.g., Google App; Google Now Launcher, etc.); 5) press DONE in the upper right corner. Not everything you select produces results.
Common android phone apps that work through notifications
- Gmail (notifications, read, reply, show on phone, delete)
- Type Mail (reply, show on phone, etc).
- Google Now (notifications of top card; clicking on an address in an event loads google maps on phone)
- Tidal (works fine with the music player)
- Doubletwist (volume, pause, next/previous track)
- Spotify (volume, pause, next/previous track)
- Google Music (works with the music controls on the S2)
- Citymapper ("get off soon at stop X" notification)
- Google App (I tend to get cards from time to time. The one I get the most is travel times from Home to Work and vice versa)
- Google + (Requested notifications)
- Textra (can respond on the S2!)
- Inbox (can't reply on the S2)
- Periscope (Notifications Only)
- Google Wallet (Notifications only?)
- Nine - Exchange email app
- Hangouts (installing the Android wear app from the play store allows you to reply to Hangout messages when using as SMS)
- Fenix (Twitter client)
- Facebook (notifications only)
- Messenger (communicator for Facebook, both check the notification and reply)
- WhatsApp (receives notifications and can answer them)
- ChompsSMS (you can reply but you can't see any pictures)
Dedicated watch apps
- Messages (works with Samsung messaging app on Samsung phones)
- Email (works with Samsung email app on Samsung phones)
- Calendar
- S Health (works with android app from Samsung): watch app has heart rate monitoring, workouts (step count, running, walking, cycling, hiking, elliptical, stationary bike, step machine), and -- as of the update which began rolling out in July 2016 -- sleep monitoring. (Also: http://forums.androidcentral.com/samsung-gear-s2/635122-sync-s-health-myfitnesspal.html)
- HERE maps (turn by turn directions via watch app). (How to get HERE maps directions to watch | Samsung Gear S2)
- Samsung Milk Music (will be phased out, supposedly to be replaced by another streaming service)
- Yelp
- RoadifyTransit
- Komoot (sport navigation app; app for watch needs android app on phone)
- ESPN (Requested notifications of the phone app side work very well)
- CNN (Breaking News updates via watch app)
- GNight (paid sleep tracking app, works but as of yet data stays on the watch)
- Sleep as Android (sleep tracking watch app, works with Android app of the same name, which shares data with S Health on the phone. Uses a lot of battery.)
- Gear Navigator (a navigation app with watch app and companion app on phone, can show the way on the GearS2 using Google Maps data + fine notification system with vibrations, as 2 times for 'turn left' or 3 times for 'turn right'; has a standalone version for 3G watches.
- Navigator Assistance Gear (similar to other navigation apps, uses google maps data)
- My Notes in Gear (You can create notes or reminders on phone and sync with GearS2 app to read it; also you can create and edit them on the smartwatch with standard keyboard or voice input)
- Altimeter & Barometer (several versions of both available on the Gear store)
- Filesmaster (sophisticated file manager/viewer/player able to transfer files from phone to watch, watch to watch, and windows pc to watch. Also, play video and audio files, show system parameters, and more. Filesmaster ).
- Easilydo (an alternative to google notifications that offers more control and complication, less artificial intelligence; watch app is free, phone app is fremium)
- Uber (has watch companion app, needs special phone app)
- Ebay (watch app is companion for phone app?)
- iHeartRADIO
- Camera Controller (watch app that controls phone camera; also see Camera Gear, Camera Controller, and others)
- Yale Digital Keys (watch app is companion to android app)
- KLM Royal Dutch Airlines (watch app is companion to android app)
- SAS airlines
- Iberia airlines
- Find My Car (Gear app that works with Samsung's car mode)
- Parkmobile (parking payment app requires Parkmobile phone app, works in Belgium, the UK, and Germany only; does not work in US yet)
- Remote Camera Pro (controls phone's camera from watch)
- Golf Navi Global (Golf GPS app)
- Pear Gear app (workout app w audio coaching, works with phone app)
- "Workout Trainer for Samsung" from Skimble (a watch companion app, offers audio and text guidance through various workouts)
- Strength Training (exercise app)
- tennis TraQ (when paired with phone tacks and helps analyze your game)
Also there's an emerging category of
watch apps by small developers that work with major platforms:
- ENoteGear (Evernote client)
- TaskS2 for Tasker (watch/phone app combo that lets you start Tasker actions from your watch; powerful with a steep learning curve; if you can start your car with your phone you can probably start your car via your watch with this app)
- Triggers (IFTTT- STandalone for 3G watch; phone-linked if non-3G)
- Geargram for S2 (Instagram feed)
- SquareGear (Foursquare)
- ChatHub (currently supports Whatsapp, Facebook Messenger, Google Hangouts, Skype, Kakao Talk, Line, Signal, BBM, Textra, Google Messenger, Chomp, and Go SMS)
- Fidme (with phone app, allows display of loyalty card barcodes -- e.g., grocery store loyalty cards -- on watch. Works for some.)
- Playlists for Spotify Premium
- Stations for Pandora
- Philips Hue remote (controls Philips Hue lighting systems; also one called Smart Hue, and recently other competitors)
- iNELS Home Control (for iNELS systems)
- Gopro Shutter for HERO4 (also a separate app for HERO3, also one called GearPro, another called GoPro Shutter)
- Kodi Gear Circle (for controlling XBMC/Kodi installations)
- Theta S Remote (for control of Ricoh Theta S 360 degree camera)
- Wearable Widgets for Gear S2 (working with a $2 Android app, does its best to display any Android widget on your watch, allowing some kinds of interactions)
- "Notifications Wear Style for Gear S2" is a watch/phone app combo that sets out to duplicate the notification functions of Android Wear on Tizen.
If you have trouble with your watch/phone connection, here are some tips:
http://forums.androidcentral.com/sa...es-maintaining-watch-phone-communication.html
There's a more detailed description (in Polish, try Google translate) of many of the watch apps here:
Prześwietlenie aplikacji – Samsung Gear S2. Wszystko, co dotyczy oprogramowania najnowszego smartwatcha z Tizenem, w jednym miejscu | Tabletowo.pl