WHAT IS A DAPP? UNDERSTANDING DECENTRALIZED APPLICATIONS’
With dApps, there are still computers that do the same job as traditional servers, but those computers don’t all belong to the same person or company. Instead, the workload is distributed across the user's computer and the computer of anyone else who makes their computer system available.
In the case of a peer-to-peer system, everyone involved also contributes. With BitTorrent, you can share data with other peers as if you were downloading it for your own use. BitTorrent is not really a dApp in the modern sense, although it is actually a decentralized application.
When the term "dApps" is used, it usually refers to applications that rely on the computing power of the blockchain to work. More specifically, dApps mostly exist on the Ethereum blockchain.
Ethereum is a cryptocurrency very similar to Bitcoin, but it aims to do more. The Ethereum blockchain can execute complex instructions, allowing smart contracts and a variety of other applications limited only by the imagination of developers.
To be a true dApp, it should adhere to three principles:
DApps must be secured with cryptographic tokens. Its data and records must be public. It must be open source and not under the control of any individual or group. Of course, no one enforces any of these rules, and anyone can develop a dApp that has some but not all of them. Therefore, if you choose to use a dApp, it is up to you whether it is important to you to adhere to these principles.
The benefits of building a decentralized application
Now that your understanding of apps has leveled up, let's take a look at the reasons for the rise in demand for apps.
No downtime Once the smart contract is deployed on the blockchain, the network starts serving its clients. Interestingly, these contracts that power the app run 24/7 and continue to execute seamlessly until the blockchain includes the contracts.
Privacy You can secure transactions between users without sharing their data using public and private keys.
Resist censorship Since the Dapp is uncontrolled, no one can block or prevent users from submitting transactions or reading data from the blockchain.
Complete data integrity Dapps have no central point of failure, and due to cryptographic primitives, the data stored is immutable. All these properties make it difficult to crack the chain and control the decentralized application.
In a nutshell, Dapps have the following advantages
No intermediary to control the application;
Provides more secure security than client/server networks;
Tamper-proof records of the entire database;
Blocks that have already been written shall not be changed without the consent of the entire network;
One interruption/attack cannot stop it;
No downtime;
Improve reliability;
Easy to pay;
How to develop Decentralised Application
There are plenty of opportunities in the commercial blockchain space. DApps are solutions to improve transparency, security and efficiency. Now that you understand the concept of DApps and their use cases, you will be curious to know how they are developed.
The steps mentioned below will briefly describe how to develop a DApp without diving into the technicalities for a better understanding.
1. Identify the problem Before starting DApp Application development, identify the problems you need to solve. Will DApps be your ultimate solution to these problems? Analysis Do you want to remove centralization or third parties from your application and start over with distributed ledgers?
Whatever it is, the first step in DApp development is to identify the problems and determine if the app can solve them.
2. Proof of Concept Your next step is to validate the DApp idea and demonstrate its potential. Validate with minimal resources before investing a lot of money. For example, engineers conduct test drives before introducing new models to the market. This helps them identify any vulnerabilities and address them before market launch.
Likewise, in a proof of concept, you test and analyze the potential of your DApp model. It is an essential process in DApp development.
3. Choose a blockchain Once the proof of concept (POC) is successful, go to find the perfect distributed ledger for your DApp development, the next step in your execution plan. You can list your requirements and find relevant blockchains.
Each blockchain has its strengths and limitations. The most popular DApp blockchain is Ethereum. In this case, users need to purchase the DApp's native token to interact with the DApp. This article further mentions a detailed overview of token generation costs.
4. Launch your application After testing you can launch your DApp. However, it is best to be cautious before rushing into the DApp development phase. Take your time as it is immutable after starting a production server.
Another solution is to seek professional advice throughout the DApp development process.
How much does it cost to develop a Financial App, decentralized Application
In the Ethereum network, the cost of transactions and database storage is borne by users: people pay money in the form of “gas” when they want to launch smart contracts and DApps. There are no commissions in the EOS ecosystem. For the processing and storage of transactions, developers need to pay. They rent node resources to initialize smart contracts and deploy applications.
Estimated total cost of 21,000 ($52,000 at 1/19/2019 exchange rates) required to deploy the application. So it takes 10,000 coins to spend on RAM, the same amount on CPU, and another 1,000 coins on NET. Contracts to deploy DApps on the Ethereum network will remain within $100. The project team promised to reduce the cost of blockchain network and processor resources, but so far it has been the case. This should be considered when developing applications for EOS.
The cost to develop Fintech app is approximately: - Using simple smart contracts - from $500 to $2,000; - use of complex smart contracts (guarantor, data entry into external registry) - up to $5,000; - Applications with advanced smart contracts - up to $10,000; - Games on EOS - from $10,000 to $300,000; - EOS wallet - up to $10,000; - Courier - from $10,000.
When creating a DApp by a regular team of programmers, you need to pay attention to hourly rates. In the US and Western Europe, it is in Between $25-49/hour.$100/hour, Eastern Europe - from $40 to $70/hour, India - $40-50/hour, Africa - $25-49/hour.