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This article mainly introduces "what are the most popular applications developed by iOS and Android bitcoin". In daily operations, I believe many people have doubts about the most popular applications developed by iOS and Android bitcoin. The editor has consulted all kinds of materials and sorted out simple and easy-to-use operation methods, hoping to help you answer the questions about "what are the most popular applications for developing iOS and Android bitcoin?" Next, please follow the editor to study!

Blockchain

Blockchain is considered to be the most popular bitcoin wallet in the world. Today, more than 14 million wallets worldwide are registered with BC. In addition, Blockchain provides developers with a complete set of free API, so we started using it for analysis.

Supported platform: Android,iOS,Windows,Mac OS,Linux

Blockchain is a very popular service. It supports many programming languages in the form of libraries such as API (Python,Java,NET,Ruby,PHP,Node, etc.).

The service uses two different API keys:

Receive Payments V2 API KEY: an easy way for websites to receive bitcoin payments. This option is completely free and safe. It is an ideal choice for business and personal use.

Blockchain wallet Blockchain Wallet API KEY: full access to all the functions of this service, such as wallet creation, payment, sending transactions, address management, etc.

To receive any keys, you must request an API from BC. The application contains the name of the person / organization, email, and the URL of the website or application.

This process should exclude different fraudulent methods or the use of keys for unfair purposes. Therefore, in the request, you should also describe what you will use the blockchain service. Requests for API keys are usually accepted or rejected within 2-3 business days.

Blockchain is very successful with its own Android and iOS clients (applications). For example, Blockchain's Bitcoin wallet has been downloaded more than a million times on Google Play. It is also one of the most popular bitcoin wallets in the world, according to the New York Times and the Wall Street Journal.

Pricing: free of charge

Our example:

On GitHub, you can find a sample application based on Blockchain API. It uses Blockchain's Java library. The application has two main functions:

Create a wallet.

The exchange rate of Bitcoin.

Get the source code and study blockchain

BitcoinJ

BitcoinJ SDK is a cross-platform SDK (Java,JavaScript) for bitcoin systems. Written by Mike Hearn, BitCoinJ is a more lightweight and accessible version of the original Bitcoin client. The project is well documented and allows many large bitcoin applications and services to use this SDK.

Supported platform: Windows,Android

BitcoinJ is implemented in Java, but it can be used from any JVM-compliant language, including CruyPol, Ruby, Python, etc.

The SDK allows users to use TestNet3 (the official bitcoin test network), MainNet (the original and primary network for bitcoin transactions), and set up private servers.

BitcoinJ does not need to register, because in this case the Bitcoin wallet is created on the device. Therefore, it does not require the consumer's personal information (private key), so SDK is very secure.

BitcoinJ has very rich functions. It includes creating a new wallet with password encryption, using an existing wallet, checking balances, sending and receiving bitcoins. In addition, the SDK can provide developers with the necessary tools for exchange rate conversion, encryption, obtaining large amounts of transaction information, obtaining unconfirmed transactions, customizing the process of confirming transactions, and so on.

The service has its own SPV mode. It allows users to download only part of the bitcoin blockchain and use it. Therefore, users do not need to download the complete block chain. This is ideal for mobile devices, as the full blockchain size reached 100GB in December 2016 and doubled each year.

BitcoinJ SDK has its own open source applications. Based on this, Bitcoin wallets are now downloaded more than 1 million times on Google Play.

Pricing: free of charge

Our example:

On GitHub, you can find sample applications based on BitcoinJ SDK. This application is suitable for testing network TestNet3 and includes several functions:

Create a wallet

Check the balance

Receive and send transactions

Test Bitcoin for free

Generate your wallet address QR code

Scan the recipient's wallet address QR code

This example uses some other libraries, such as Android Annotations,QRGen and Zxing.

Note: it may take up to 15 minutes to start the application for the first time, but only once. So please be patient and drink some tea or coffee at this time.

Get the source code and study BitcoinJ

Coinbase

Coinbase SDK is a cross-platform SDK (Java) for dealing with bitcoin systems. In addition, the name also applies to American digital asset trading companies. Coinbase operates digital asset exchanges for legal tender in 32 countries and bitcoin transactions and storage in 190 countries around the world.

Supported platform: Android,iOS.

The official Coinbase library includes Java,Ruby,Python,Node.js and PHP.

This SDK allows users to obtain information about Bitcoin's current exchange rate (and its change history) or other currencies without registering.

Two methods are used for authentication in Coinbase:

API KEY . It can be created and activated in the API settings on the site. In this case, you can only access your own account or merchant order

Use an OAuth token to redirect to the official website. This method allows users to access their personal accounts and manage wallets, and is suitable for mobile applications.

After registration, you can perform all types of operations, including buying and selling bitcoins in other currencies, sending transactions, and so on. Although some features are limited, they are not applicable to all countries.

Coinbase has official applications on Google Play and iOS. Its Android Bitcoin wallet has now been downloaded more than a million times, making it a top product for similar applications.

By the way, Coinbase allows users to use not only bitcoin, but also other cryptocurrencies, such as ethernet and Lettercoin.

Pricing: free.

Our example:

Our sample application on Github uses Coinbase Android SDK. The application is used with the official Coinbase Wallet and includes the next feature:

Authorization

Check the balance

Send and receive Bitcoin

Bitcoin's current exchange rate

Currency / Bitcoin Exchange rate Calculator

This sample application also uses the RxAndroid library.

Get the source code and study Coinbase

Fifty-four per cent of Coinbase customers strictly use bitcoin as an investment.

SDK function comparison

Summarize the SDK mentioned above. As we can see from the spreadsheet, the function is almost the same, but there are some differences.

At this point, the study on "what are the most popular applications developed by iOS and Android bitcoin" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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