DEV Community: VironIT Blog

How to Build a Cryptocurrency Exchange App in 2022

VironIT Blog — Fri, 04 Feb 2022 11:11:23 +0000

A crypto exchange app is like a marketplace which offers a portal where you can create different order types to buy, sell, and speculate on cryptocurrencies with other users.

But, how to open your own cryptocurrency exchange app? Let’s dive deeper.

Before Start, Choose Option to Create a Cryptocurrency Exchange App

If you lack the technical skills to handle it on your own, we recommend starting with these options:

Purchase a white-label solution
Develop a custom app from scratch

This way, you can get your app in front of the right people fast. Now let's take a closer look at the second option.

#1 Choose Cryptocurrency Exchange Type

Crypto exchanges can be either centralized, meaning they are managed by one corporate authority, or decentralized, where they generally distribute verification powers to anyone willing to join a network and certify transactions. There is also hybrid option or peer-2-peer crypto exchange

The differences between options are best illustrated with a comparison table.

Criteria	CEX	DEX	Hybrid
Liquidity	High	Low	Low
UI & UX	Easy to use	Hard to use	Easy to use
Matching speed	Very fast	Slow	Fast
Custody	Users trust CEX	Users own their funds	Users own their funds
Trading volume	High	Low	Low
Features	Unlimited	Limited	Limited
Fiat gateway	Yes	No	Yes

#2 Keep an Eye on Jurisdiction

Jurisdictions under which to start a crypto exchange app vary greatly from region to region, from a clear set of regulations to a complete lack of regulation. For example, Malta, Gibraltar, Switzerland, or Singapore now stand out as attractive countries for those wishing to open a cryptocurrency exchange. However, you will still need to keep an eye on legislative changes.

#3 Think about Architecture, Technology Stack, and API

An exchange architecture usually refers to a platform structure that helps define the relationship and the way all the components of an exchange interact: the login screen, trading engine, user interface, security features, APIs, databases, etc.

#4 Find a Liquidity Provider

The success and competitiveness of your exchange business will greatly depend on liquidity: how long it takes to exchange an asset for its money equivalent. As you know, customers will always choose an exchange with good liquidity that can offer a narrower spread.

#5 Take Care of Transparency & Security

The cryptocurrency market attracts not only new members, but also scammers. So, you should constantly improve the security of your app by various methods like two-factor authentication, cold and hot wallets, database encryption, etc.

#6 Test your Crypto Exchange

Now it's time to test your application. Note that the scope of testing should cover an assessment of overall system performance, functionality, speed, and security. Remember also to collect user feedback and make necessary improvements to ensure smooth operation and improve the UX.

#7 Ensure the Sustainability of Business Processes

In addition to preparing for the launch and gaining an initial customer base, you should implement processes that will improve user loyalty. For example, you can provide ongoing customer support and take care of your asset management strategy.

Read the

full article by VironIT

to find out more examples, explanations, and development costs for the most popular cryptocurrency exchange apps like Binance Crypto.com and Coinbase.

Top Blockchain Development Companies

VironIT Blog — Mon, 01 Apr 2019 11:38:13 +0000

According to the Market Reports Center, the global blockchain market is anticipated to grow to over $60 billion by 2024 as more companies adopt distributed ledger technology and mass-use cases appear. But finding blockchain developer companies is still a tricky thing.

If you get lost in blockchain developer companies ' variety, this listing will help you make the right choice and find blockchain developers. To discover the blockchain development company you would like, I wanted to dive in and come up with a new, refreshing list which contains the biggest players of blockchain development, design, application building and customization.

VironIT

VironIT company has become a Member of Blockchain Association. VironIT is a custom software development company with a primary focus on delivering end-to-end software development services. The company helps to gain an advantage before competitors bringing more transparency to business with the power of IBM Hyperledger, smart contracts and mobiles apps, integrated into blockchain. VironIT provides blockchain consulting, delivers proofs-of-concept and brings clarity and mutual understanding of this technology.

VironIT is a member company of Belarus High Technology Park, a government-supported business environment for IT companies in Eastern Europe.

Year founded: 2004;

Company size: 100–250 employees;

Hourly rate: $25 — $49;

Min. project size: $5,000;

Offices: 1 Bluxome St, office 205,San Francisco, USA, 55 Great Eastern St, London, UK, 11 Kul’man St., Minsk, Belarus

Services: Mobile, web, and desktop applications. Blockchain, VR/AR, game development.

Contacts: +375 44 585 29 71, +1 877 797 0390, +44 203 695 2272;

E-mail: dev@vironit.com, info@vironit.com;

Website:

https://vironit.com

N-iX

N-iX is a software development outsourcing provider with the main focus on data science, big data analytics, blockchain, BI, AI, cloud solutions, VR & AR and embedded software.

The company has experience in blockchain software development. It specializes in a diverse tech stack and major blockchain-related programming language. N-iX team builds custom blockchain solutions on Ethereum, Hyperledger Fabric, and R3 Corda. Its programmers are well-versed in smart contracts development using these major platforms.

Founded: 2002

Company Size: 250–999 employees

Min. project size: Undisclosed

Avg. hourly rate: $25 - $49 / hr

Website:

https://www.n-ix.com/

Offices: Ukraine, Sweden, Poland, United States

Services: dedicated development team, software product development, mobile application development, game development, OpenText, professional services, software QA & testing, technical support, game art production, SAP consulting.

LeewayHertz

LeewayHertz is a custom software development company for startups and enterprises. The company develops, deploys and maintains digital technology products.

Focusing on Blockchain, AI, mobile apps, IoT and Cloud platforms, LeewayHertz builds end-to-end solutions for businesses. LeewayHertz has launched over 100+ digital platforms. LeewayHertz provides the following enterprise solutions:

Blockchain applications — dApps

Artificial intelligence enabled products

Mobile Apps: iOS, Android, cross-platform

SaaS solution development

IoT enabled apps

AR/VR solutions

Founded:2007

Company Size: 50 - 249

Min. Project Size: $10,000+

Avg. Hourly Rate: $50 - $99 / hr

Website:

https://www.leewayhertz.com/

Offices: San Francisco, CA

Services: Blockchain, Custom Software Development, Artificial Intelligence

Contact: 877-811-8115

ArcTouch

ArcTouch is a mobile development company. The company builds software that powers the IoT, including custom iOS, Android, and Xamarin apps, as well as AI bots for conversational platforms like Amazon Alexa and Facebook Messenger.

Its services include app strategy, design, engineering and lifecycle management, and can be tailored to meet specific business needs -- from defining strategy, to user experience & visual design, to engineering & testing, and optimization & growth.

Founded: 2008

Company Size: 50–249 employees

Min. project size: $25,000+

Avg. hourly rate: $100 - $149 / hr

Website:

https://arctouch.com/

Offices: US, Brazil.

Contacts:+1-415-944-2000, hello@arctouch.com

Services: strategy, design, engineering and support/maintenance.

Intellectsoft

Established in 2007, Intellectsoft is a software development company with a strong focus on emerging technology like Blockchain, Augmented Reality, Big Data, Internet of Things and Artificial Intelligence. Intellectsoft services include strategic IT consulting, team extension, bespoke product and app engineering, DevOps, testing and maintenance.

This USA based company is one of the newest and promising blockchain team. They are experts in cryptocurrency hard forks, KYC/AML compliance, smart contracts audit services, distributed applications and private/public blockchain development.

Year founded: 2007;

Company size: 250–1000 employees;

Hourly rate: $50 - $99;

Min. project size: $25,000;

Offices: 721 Colorado Ave, Palo Alto, CA 94303, United States

Contacts: 650 300 4335, 47 21 08 18 50;

E-mail: info@intellectsoft.net;

Website:

https://www.intellectsoft.net

Services: Mobile and custom software development, Blockchain.

Coinfabrik

Coinfabrik has more than 20 years of experience in developing and reviewing security applications. Since the emergence of Bitcoin they have also been very active in the cryptocurrency space, designing new cryptocurrency protocols and discovering many security vulnerabilities in blockchain technology. The services of this blockchain development company expand to assisting customers with defining product specifications, creating UI & UX designs, integrating applications, deploying hybrid cloud environment products, and providing QA services along with continuous support. The company offers a couple of core blockchain services, including smart contracts development and audit, as well as proof-of-existence (PoE) platforms, blockchain-based exchanges and wallets.

Founded: 2014

Company Size: 10 - 49

Min. Project Size: $10,000+

Avg. Hourly Rate: $100 - $149 / hr

Website:

https://www.coinfabrik.com/

Offices: Buenos Aires, Argentina

Services: UI & UX design, apps integration, QA, deploying the product to a hybrid cloud environment, support.

Contact: +541147780609

Concise Software

Concise Software is a Poland-based software development company which specializes in blockchain solutions, smart contracts, dApps, mobile & connected vehicles, web development & more.

The company has experience in implementing blockchains, smart contracts, and simple automated decentralized apps based on Ethereum blockchain and other platforms. It offers cryptocurrency payments integration into e-commerce, secure cryptocurrency payment processors, dApps with smart contracts on Ethereum blockchain, Ethereum token systems and digital wallets.

Founded: 2011

Company Size: 50 - 249

Min. Project Size: $5,000+

Avg. Hourly Rate: $50 - $99 / hr

Website:

https://concisesoftware.com/

Offices: Rzeszów, Poland, Berlin, Germany

Services: Engineering, & development, Android, iOS, Blockchain, dApps, application development, Web Development, Connected vehicles, Automotive Infotainment Systems, IoT, User experience, Cloud consulting.

Contact: contact@concisesoftware.com

Itransition

Itransition provides custom multi-tenant cloud-based Software-as-a-Service solutions. It offers IT strategy and consulting, application development, product engineering, systems integration, quality assurance and testing, application management, maintenance and support, and development and operations support services. The company provides digital engagement solutions in the areas of customer experience and engagement, digital content, omnichannel commerce, personal productivity, and social technology; and digital enterprise solutions, including business process management, collaboration, big data and analytics, data management, infrastructure management, and business intelligence. Itransition is headquartered in Lakewood, Colorado with additional offices in United Kingdom and Belarus.

Founded: 1998

Company Size: 250–999 employees

Min. project size: $10,000+

Avg. hourly rate: $25 - $49 / hr

Website:

https://www.itransition.com/

Offices: United States, United Kingdom, Belarus

Services: technology consulting, software prototyping, custom software development, software product development, enterprise application integration, application security, virtualization management, software QA and testing, maintenance and support, dedicated development centers.

Unicsoft

Unicsoft delivers software products, powered by Blockchain and AI technologies, for enterprises and fast-growing startups. The company analyzes customers’ goals and builds long-lasting relationships with companies in the United States, United Kingdom, Germany and Israel.

Unicsoft focus on cutting-edge technologies such as Blockchain, Artificial Intelligence, Machine Learning and Data Science.

Founded: 2005

Company Size: 50 - 249

Min. Project Size: $5,000+

Avg. Hourly Rate: $50 - $99 / hr

Website:

https://unicsoft.net/portfolio/#blockchain

Offices: Kiev, Ukraine

Services: Supply Chain management, Tokenisation, Wallets, Smart Contracts, Cryptocurrency, Hyperledger, Parity, Solidity, MultiChain, Ethereum, Geth

Contact: zaa@unicsoft.net

Altoros

Altoros is a 300+ people strong consultancy that helps organizations with a methodology, training, technology building blocks, and end-to-end solution development. The company turns cloud-native app development, customer analytics, blockchain, and artificial intelligence into products with a sustainable competitive advantage. Being a Silver Member of the Cloud Foundry Foundation, Altoros stands behind one of the largest Cloud Foundry deployments.

Headquartered in Silicon Valley (Sunnyvale, California), Altoros has a sales office in Western Massachusetts, branch offices in Norway, Denmark, and UK, as well as software development centers in Eastern Europe (Minsk, Belarus) and South America (Buenos Aires / Santa Fe, Argentina).

Founded: 2001

Company Size: 250–999 employees

Min. project size: Undisclosed

Avg. hourly rate: $50 - $99 / hr

Website:

https://www.altoros.com/

Offices: USA, Belarus, Argentina

Services: cloud-native app development, customer analytics, blockchain, AI.

Oxagile

Oxagile is an internationally established outsourcing company with a primary focus on delivering end-to-end software development services across a range of verticals and business domains. One of the company’s core areas of expertise lies in developing custom video streaming, hybrid TV, OTT, IPTV and VoD solutions.

Oxagile’s engineers are experienced in building products of any complexity. The company’s portfolio includes mission-critical web applications, cloud-based business process automation solutions, ERP systems, and enterprise-grade mobile apps for all the major platforms.

Founded: 2005

Company Size: 50–249 employees

Min. project size: Undisclosed

Avg. hourly rate: $50 - $99 / hr

Website:

www.oxagile.com

Offices: USA, Belarus.UK

Services: custom software development, software testing & QA services, web application development, software design & prototyping, mobile application development, IT consulting, application support & software maintenance, video software development.

Innovecs

Innovecs specializes in blockchain application development, distributed document management, money transfer solutions, loyalty programs, and enterprise cryptocurrency platforms. Innovecs expertise extends to business intelligence and Big Data, AI, QA automation, hybrid apps, and DevOps.

Founded: 2011

Company Size: 250 - 999

Min. Project Size: $25,000+

Avg. Hourly Rate: $25 - $49 / hr

Website:

https://www.innovecs.com/

Offices: New York, NY

Services: mobile and web development, blockchain, ad tech technologies, animation and art asset creation

Contact: sales@innovecs.com

Empirica

The Empirica software solutions range from a cryptocurrency algorithmic trading platform to crypto asset management to ICO investor portal. This blockchain company also uses the technology for arbitrage and other trading applications of cryptocurrencies.

The company’s services include blockchain systems development, like multi-signature wallets and exchanges, ICO services and smart contracts on Ethereum. Empirica addresses a wide spectrum of financial categories where blockchain technology can be used, including trade finance, loans, equity post-trade processing, peer-to-peer (P2P) systems, automated compliance auditing, and more.

Founded: 2010

Company Size: 10 - 49

Min. Project Size: $10,000+

Avg. Hourly Rate: $100 - $149 / hr

Website:

http://empirica-software.com/

Offices: Wrocław, Poland

Services: Custom Software Development

Contact: piotr.stawinski@empirica-software.com

Kamtor

Kamtor is a blockchain-focused development company which provides advanced solutions based on private and public blockchains such as Hyperledger, R3, EOS, Ethereum and others. This blockchain software development company offers solutions and services for various types of businesses.

Private blockchain

Founded: 2017

Company Size: 50+

Min. Project Size: -

Avg. Hourly Rate: -

Website: https://www.kamtor.com/

Offices: Moscow, Russia

Services: Services for ICO, Distributed Applications (DApps), Private Blockchains,Cloud, Augmented Reality, Mobile

Contact: sales@kamtor.com

10Clouds

10Clouds is a software development and design company. The company focuses on financial technology, online education and healthcare. This vendor has broad expertise in blockchain and has implemented several projects using this technology. It specializes in smart contacts development, Ethereum development and crowdsale.

Its software engineers built a Blockchain decentralized marketplace for Adshares. They developed a platform that connects advertisers and publishers and enables making deals using cryptocurrency.

Founded: 2009

Company Size: 50 - 249

Min. Project Size: $10,000+

Avg. Hourly Rate: $50 - $99 / hr

Website:

https://10clouds.com

Offices: Warsaw, Poland

Services: Web Development, Custom Software Development, Mobile App Development

Contact: hello@10clouds.com

Leadweb

Established in 2012, Leadweb is a technology company focused on building B2B applications that require the latest technologies, specifically projects involving Blockchain, Artificial Intelligence, Big Data and Connected Objects (IoT).

The team masters most major programming languages and frameworks such as React, Angular, Node, PHP, Python, Go, iOS (Swift) and Java (Android). Leadweb developers can work either on turn-key projects or integrate our clients teams directly on-site or from our offices in downtown Montreal.

Founded: 2012

Company Size: 10 - 49

Min. Project Size: $25,000+

Avg. Hourly Rate: $100 - $149 / hr

Website:

https://lead-web.com/#/

Offices: Montreal, Canada

Services: Blockchain, Artificial Intelligence, Big Data and Connected Objects (IoT)

Contact: info@lead-web.com

Appinventiv

Founded in 2014 in New York, Appinventiv provides a range of blockchain services to its customers. Some of their areas of excellence include initial coin offering, smart contract, cryptocurrencies, Bitcoin, Ethereum, tech audit and IoT in the blockchain.

Appinventiv also provides valuable advice to startups who are thinking to raise an ICO. Its team of blockchain marketers, designers and developers know how to employ the tools to help you work in a decentralized ecosystem.

Founded: 2014

Company Size: 250 - 999

Min. Project Size: $10,000+

Avg. Hourly Rate: $25 - $49 / hr

Website:

https://appinventiv.com/

Offices: Noida, India

Services: Mobile Development, Wearable Development, IoT, iBeacon, Web Development

Contact: sales@appinventiv.com

Cubix

Cubix is a full-cycle, mobile-first software development company, that helped Estee Lauder & Clinique, Swatch Group, Politico and dozens of startups develop their software.

This experienced blockchain development company has a detailed understanding of cloud services, AI and IoT. Cubix development team builds decentralized applications on Corda, Ethereum, Hashgraph and Hyperledger.

Year founded: 2008;

Company size: 50–249 employees;

Hourly rate: $25 - $49;

Min. project size: $25,000;

Headquarters: 4th Floor, Suite# 456, 1875 K St NW, Washington, DC 20006, United States

Contacts: 866.978.2220

E-mail: info@cubix.co

Website:

https://www.cubix.co/

Services: development, customization and integration of complex enterprise-level solutions, business intelligence analytics, advanced web and mobile solutions.

Neoteric

Neoteric is a dynamic, innovative and highly driven enterprise, primarily active in the IT sector. The company combines Agile approach to projects with the best software engineering practices. Its team believes that crafting software is about understanding business needs and delivering software that brings profit. Neoteric focus on using cutting-edge technologies that are really up-to-date which pushes us to evolve our skills. The company has great experience in creating startup projects for investors, implementing complex process automation solutions and working with blockchain technologies.

Founded: 2005;

Company size: 50–249 employees;

Hourly rate: $50 - $99 / hr

Min. project size: $10,000+

Headquarters: Marynarki Polskiej 163, 80-868 Gdańsk, Poland

Contacts: info@cubix.co

Website:

https://neoteric.eu/services/#blockchain

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Services: Artificial Intelligence, Web Development, Custom Software Development.

IT Svit

IT Svit Company is a managed services provider with wide expertise in DevOps services, Big Data solutions, web development, QA automation and system administration.

The company optimize IT infrastructure, cut IT maintenance budgets, shorten time-to-market for their projects and scale easily to meet clients business goals.

Founded: 2005;

Company size: 50–249 employees;

Hourly rate: $50 - $99 / hr

Min. project size: $5,000+

Headquarters: Kharkiv, Ukraine

Contacts: 380.57.752.87.42

E-mail: info@itsvit.org

Website:

https://itsvit.com/

Services: DevOps services, Big Data solutions, full-stack web development, QA automation and system administration.

Almost every list I've read that aims to share information about the top blockchain development companies almost always includes Bitcoin and Ether. But finding the best blockchain developers still takes time and effort, more so if you plan that blockchain will be a big gear in your business. Although I hope this guide will help you find the right blockchain technology vendor to take your company to the next level.

Get started with variable fonts in CSS

VironIT Blog — Mon, 25 Mar 2019 13:42:39 +0000

Variable fonts are a technology which enables many variations of a typeface to be incorporated into a single file, rather than having a separate font file for every width, weight or style. The font allows you to change saturation, proportions, contrast, size and animation. Variable fonts were introduced in 2016 in OpenType version 1.8. The technology was developed with the help of Apple, Microsoft, Adobe and Google companies.

If you would like to see how font variation works, play with OpenType Variable Fonts on the Lawrence Pinna website: http://www.axis-praxis.org/. Axis-Praxis website is conceived to demonstrate the capabilities of variable fonts in web browsers. Variable fonts are supported in Chrome v62+ on macOS, Windows and Linux, Safari 11 on macOS 10.13 High Sierra and iOS 11, and Microsoft Edge in the Windows Insider Preview edition of Windows 10 v1709.

Note, Safari on macOS Sierra doesn't support variable fonts. You need to upgrade to the next version of the operating system or run the site in Chrome. The ability to use one file for any number of outlines also allows for saving space. To connect a font with several outlines to the site (normal, light and bold), you need to include at least three files.

In fact, for each style, you need to connect .ttf web font, .woff web font and a compact web font for IE .eot. For each style, the browser downloads a file, which of course affects the time the content is displayed.

With variable fonts, only two files need to be included: .ttf and woff. The browser itself will select the appropriate file for it and download it. The number of server requests is reduced from 3 to 1. As a result, the text on site will appear faster.

CSS4 supports font variations for the font-weight, font-stretch, font-style, font-optical-sizing properties.

As I mentioned above, macOS Sierra in Safari doesn't support this technology, but macOS High Sierra already supports. So everything is great and you can start to deal with them.