Decentralized application

A decentralized application (DApp,[1] dApp,[2] Dapp, or dapp) is a computer application that runs on a distributed computing system. DApps have been popularized by distributed ledger technologies (DLT) such as the Ethereum Blockchain, where DApps are often referred to as smart contracts.

This article is about trustless decentralized applications. For other types of decentralized applications, see Distributed computing.

DApps can be found on centralized marketplaces such as State of the DApps, Dapp.com, Holdex, DAppRadar and CoinGecko.

Characteristics

DApps have their backend code running on a decentralized peer-to-peer network, as opposed to typical applications where the backend code is running on centralized servers. A DApp can have frontend code and user interfaces written in any language that can make calls to its backend. Furthermore, its frontend can be hosted on decentralized storage such as Swarm or IPFS.

DApps are typically open source, decentralized, incentivized through providing tokens to those who validate the DApp, and in compliance with a specific protocol agreed upon within the community.

Deployment

DApps may run on top of distributed computing systems such as Ethereum or Bitcoin. Decentralized applications are stored on and executed by a blockchain system. Steem created a well-established ecosystem that leads to the widespread adoption of DApp development. There are large number of DApps that are serving well in various industries. Examples are Steem Monsters, dMania, Steemblr, Musing and SteemHunt etc.

Adoption

There have been criticisms of DApps surrounding their inaccessibility to the average user. Many DApps struggle to attract users, particularly in their founding stages, and even those that attract widespread initial popularity struggle to retain it. A notable example was the DApp CryptoKitties, which crashed the Ethereum network at the height of its popularity [3]. CryptoKitties and another similar gaming-based DApp, Dice Games, have failed to attract similar traction since.[4]

However, there remains optimism in the cryptography community that DApps will achieve better adoption rates in coming years. A report by UK-based market intelligence Juniper Research stated that the DApps most likely to first gain mass adoption would deal with verifying digital identities or tracking products through supply chains.

The Institute of Electrical and Electronics Engineers hosted conferences on DApps in 2019 and 2020.[2]

Examples
  • Blockstack - a platform for developing decentralized applications.[8]
  • Freelance - platform on smart contract.
  • Steem - based on blockchain technology, publishers rewarded with crytocurrency.[6]
gollark: Yes, it would be foolish to not do that.
gollark: Not *now*, but is it impossible that someone will mathematically rigorousize these things?
gollark: I mean, mostly.
gollark: Yep.
gollark: Actually, this is inaccurate, as of certain treaties around 2005.

References
  1. "CVC Money Transmission Services Provided Through Decentralized Applications (DApps)" (PDF). FinCEN. Retrieved 2019-05-09.
  2. "IEEE DAPPS 2020". ieeedapps.net. Archived from the original on 2020-04-26. Retrieved 2020-08-15.
  3. https://techcrunch.com/2017/12/03/people-have-spent-over-1m-buying-virtual-cats-on-the-ethereum-blockchain/
  4. https://www.wsj.com/articles/cryptokitties-and-dice-games-fail-to-lure-users-to-dapps-11559122201
  5. Leising, Matthew (July 26, 2018). "As Crypto Meets Prediction Markets, Regulators Take Notice". Bloomberg.
  6. Cai, Wei; Wang, Zehua; Ernst, Jason B.; Hong, Zhen; Feng, Chen; Leung, Victor C. M. (2018). "Decentralized Applications: The Blockchain-Empowered Software System". IEEE Access. 6: 53019–53033. doi:10.1109/ACCESS.2018.2870644. ISSN 2169-3536.
  7. Kharif, Olga (2017-12-05). "CryptoKitties Mania Overwhelms Ethereum Network's Processing". Bloomberg. Retrieved 2018-08-23.
  8. Corbyn, Zoë (2018-09-08). "Decentralisation: the next big step for the world wide web". The Observer. ISSN 0029-7712. Retrieved 2019-10-06.
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