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Introduction to Decentralized Apps
Welcome to the world of blockchain! In this lesson, we will explore how modern blockchain applications work on NEAR Protocol, focusing on the key concepts that make Decentralized apps different from traditional ones.

Traditional Apps
Did you ever notice that different applications force you to have different accounts? Facebook, Gmail, and your bank all make you create an account, each living only on their servers.
The problem is not just that you have to remember multiple usernames and passwords. You are also giving full control of your funds and data to these different companies.
Not only you need to trust them with not playing around with your data and assets, but also hope they do not shut down or decide to lock you out of your account.
The Decentralized World
Decentralized applications change the traditional model completely. Instead of relying on a single company to manage your data and funds, you interact with a decentralized network of computers that provide secure and transparent services.
Accounts
In NEAR Protocol you have a single identity, known as your NEAR account. Nobody except you can control this account, and you can use it to access any application built on any chain.
You still can have multiple accounts if you choose to, but they are all under your control, and not tied to any specific service
Decentralized Applications
Decentralized apps live on blockchains. They are fully transparent and auditable, and can be configured such that nobody can change them nor shut them down.
Decentralized apps are interoperable by default, being able to easily interact with others and share data. Also, in the decentralized world there are no geographical borders. You can access any app from anywhere in the world, and easily send and receive funds across borders.
Moreover, since anyone can create NEAR apps, you can connect directly with your users, cutting the man in the middle and thus greatly reducing costs.
Quiz
Who is the sole owner of your NEAR account?
A. NEAR Foundation
B. You
C. The application you are using
D. Your wallet provider