Each flagship Galaxy smartphone is eligible to the so-called Galaxy Gifts - a package of premium apps and subscriptions you are getting for free. Those gifts are naturally found in the Galaxy Apps repository, but some of those (Dropbox, OneDrive) may have already been pre-installed.
Anyway, the new Samsung Galaxy S6 edge+ and Galaxy Note5 are also granted a huge package of freebies. There are various popular apps and subscriptions, and those should be available for download right away within the Galaxy Apps store.
Here is the complete lest of free stuff:
Apps: Art Rage, Komoot, Sketch Book
Games: Driver Speedboat Paradise, Empire: Four Kingdoms, Hearthstone: Heroes of Warcraft, PES Club Manager
Subscriptions: 6 months for The Economist, 6 months premium for The Guardian, One Kindle ebook each month, 6 months Gold for Lifesum, 6 months for NY Times, 100GB OneDrive for 2 years, 3 months unlimited access for Scribd
Bonus: 15% off of your next reservation via TripAdvisor (up to $100)
You've probably noticed some of the apps/games are free by default in the Play Store, in which cases you'll receive some free in-app content, which otherwise will cost you some cash.
If you already own a Note5 or S6 edge+ you may want to check with the Galaxy Apps. A free Samsung account is required for the download.
I'm wondering about sold unit count, will it achieve 100000 limit?
You have no idea how business works, do you? If Samsung were to calculate what it costs them to give away these freebies and reduce that amoumount, the phone price would come down maybe 10$. But if they were to calculate what this would cost to ...