• Customized IT
    31 December 2011

    Barely two months after National Technical University of Ukraine 'Kyiv Polytechnic Institute' (NTUU 'KPI') students and young scientists have founded an IT startup named 'Polyteco' they were already working on their first order. We were contacted by Business Technology Investment Ltd, a British company which wanted Ukrainian programmers to develop an SMS voting system for a reality show Big Brother.


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  • What is Blockchain: Everything You Need to Know (2022)

    If you want to pay online, you need to register an account and provide credit card information. If you don't have a credit card, you can pay with bank transfer. With the rise of cryptocurrencies, these methods may become old.

    Imagine a world in which you can do transactions and many other things without having to give your personal information. A world in which you don’t need to rely on banks or governments anymore. Sounds amazing, right? That’s exactly what blockchain technology allows us to do.

    It’s like your computer’s hard drive. blockchain is a technology that lets you store data in digital blocks, which are connected together like links in a chain. 

    Blockchain technology was originally invented in 1991 by two mathematicians, Stuart Haber and W. Scot Stornetta. They first proposed the system to ensure that timestamps could not be tampered with.

    A few years later, in 1998, software developer Nick Szabo proposed using a similar kind of technology to secure a digital payments system he called “Bit Gold.” However, this innovation was not adopted until Satoshi Nakamoto claimed to have invented the first Blockchain and Bitcoin.

    So, What is Blockchain?

    A blockchain is a distributed database shared between the nodes of a computer network. It saves information in digital format. Many people first heard of blockchain technology when they started to look up information about bitcoin.

    Blockchain is used in cryptocurrency systems to ensure secure, decentralized records of transactions.

    Blockchain allowed people to guarantee the fidelity and security of a record of data without the need for a third party to ensure accuracy.

    To understand how a blockchain works, Consider these basic steps:

    • Blockchain collects information in “blocks”.
    • A block has a storage capacity, and once it's used up, it can be closed and linked to a previously served block.
    • Blocks form chains, which are called “Blockchains.”
    • More information will be added to the block with the most content until its capacity is full. The process repeats itself.
    • Each block in the chain has an exact timestamp and can't be changed.

    Let’s get to know more about the blockchain.

    How does blockchain work?

    Blockchain records digital information and distributes it across the network without changing it. The information is distributed among many users and stored in an immutable, permanent ledger that can't be changed or destroyed. That's why blockchain is also called "Distributed Ledger Technology" or DLT.

    Here’s how it works:

    • Someone or a computer will transacts
    • The transaction is transmitted throughout the network.
    • A network of computers can confirm the transaction.
    • When it is confirmed a transaction is added to a block
    • The blocks are linked together to create a history.

    And that’s the beauty of it! The process may seem complicated, but it’s done in minutes with modern technology. And because technology is advancing rapidly, I expect things to move even more quickly than ever.

    • A new transaction is added to the system. It is then relayed to a network of computers located around the world. The computers then solve equations to ensure the authenticity of the transaction.
    • Once a transaction is confirmed, it is placed in a block after the confirmation. All of the blocks are chained together to create a permanent history of every transaction.

    How are Blockchains used?

    Even though blockchain is integral to cryptocurrency, it has other applications. For example, blockchain can be used for storing reliable data about transactions. Many people confuse blockchain with cryptocurrencies like bitcoin and ethereum.

    Blockchain already being adopted by some big-name companies, such as Walmart, AIG, Siemens, Pfizer, and Unilever. For example, IBM's Food Trust uses blockchain to track food's journey before reaching its final destination.

    Although some of you may consider this practice excessive, food suppliers and manufacturers adhere to the policy of tracing their products because bacteria such as E. coli and Salmonella have been found in packaged foods. In addition, there have been isolated cases where dangerous allergens such as peanuts have accidentally been introduced into certain products.

    Tracing and identifying the sources of an outbreak is a challenging task that can take months or years. Thanks to the Blockchain, however, companies now know exactly where their food has been—so they can trace its location and prevent future outbreaks.

    Blockchain technology allows systems to react much faster in the event of a hazard. It also has many other uses in the modern world.

    What is Blockchain Decentralization?

    Blockchain technology is safe, even if it’s public. People can access the technology using an internet connection.

    Have you ever been in a situation where you had all your data stored at one place and that one secure place got compromised? Wouldn't it be great if there was a way to prevent your data from leaking out even when the security of your storage systems is compromised?

    Blockchain technology provides a way of avoiding this situation by using multiple computers at different locations to store information about transactions. If one computer experiences problems with a transaction, it will not affect the other nodes.

    Instead, other nodes will use the correct information to cross-reference your incorrect node. This is called “Decentralization,” meaning all the information is stored in multiple places.

    Blockchain guarantees your data's authenticity—not just its accuracy, but also its irreversibility. It can also be used to store data that are difficult to register, like legal contracts, state identifications, or a company's product inventory.

    Pros and Cons of Blockchain

    Blockchain has many advantages and disadvantages. 


    • Accuracy is increased because there is no human involvement in the verification process.
    • One of the great things about decentralization is that it makes information harder to tamper with.
    • Safe, private, and easy transactions
    • Provides a banking alternative and safe storage of personal information


    • Data storage has limits.
    • The regulations are always changing, as they differ from place to place.
    • It has a risk of being used for illicit activities 

    Frequently Asked Questions About Blockchain

    I’ll answer the most frequently asked questions about blockchain in this section.

    Is Blockchain a cryptocurrency?

    Blockchain is not a cryptocurrency but a technology that makes cryptocurrencies possible. It's a digital ledger that records every transaction seamlessly.

    Is it possible for Blockchain to be hacked?

    Yes, blockchain can be theoretically hacked, but it is a complicated task to be achieved. A network of users constantly reviews it, which makes hacking the blockchain difficult.

    What is the most prominent blockchain company?

    Coinbase Global is currently the biggest blockchain company in the world. The company runs a commendable infrastructure, services, and technology for the digital currency economy.

    Who owns Blockchain?

    Blockchain is a decentralized technology. It’s a chain of distributed ledgers connected with nodes. Each node can be any electronic device. Thus, one owns blockhain.

    What is the difference between Bitcoin and Blockchain technology?

    Bitcoin is a cryptocurrency, which is powered by Blockchain technology while Blockchain is a distributed ledger of cryptocurrency 

    What is the difference between Blockchain and a Database?

    Generally a database is a collection of data which can be stored and organized using a database management system. The people who have access to the database can view or edit the information stored there. The client-server network architecture is used to implement databases. whereas a blockchain is a growing list of records, called blocks, stored in a distributed system. Each block contains a cryptographic hash of the previous block, timestamp and transaction information. Modification of data is not allowed due to the design of the blockchain. The technology allows decentralized control and eliminates risks of data modification by other parties.

    Final Saying

    Blockchain has a wide spectrum of applications and, over the next 5-10 years, we will likely see it being integrated into all sorts of industries. From finance to healthcare, blockchain could revolutionize the way we store and share data. Although there is some hesitation to adopt blockchain systems right now, that won't be the case in 2022-2023 (and even less so in 2026). Once people become more comfortable with the technology and understand how it can work for them, owners, CEOs and entrepreneurs alike will be quick to leverage blockchain technology for their own gain. Hope you like this article if you have any question let me know in the comments section


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  • ProWritingAid VS Grammarly: Which Grammar Checker is Better in (2022) ?

    ProWritingAid VS Grammarly:  When it comes to English grammar, there are two Big Players that everyone knows of: the Grammarly and ProWritingAid. but you are wondering which one to choose so here we write a detail article which will help you to choose the best one for you so Let's start

    What is Grammarly?

    Grammarly is a tool that checks for grammatical errors, spelling, and gives you comprehensive feedback on your writing. You can use this tool to proofread and edit articles, blog posts, emails, etc.

    Grammarly also detects all types of mistakes, including sentence structure issues and misused words. It also gives you suggestions on style changes, punctuation, spelling, and grammar all are in real-time. The free version covers the basics like identifying grammar and spelling mistakes

    whereas the Premium version offers a lot more functionality, it detects plagiarism in your content, suggests word choice, or adds fluency to it.

    Features of Grammarly

    • Spelling and Word Suggestion: Grammarly detects basic to advance grammatical errors and also help you why this is an error and suggest to you how you can improve it
    • Create a Personal Dictionary: The Grammarly app allows you to add words to your personal dictionary so that the same mistake isn't highlighted every time you run Grammarly.
    • Different English Style: Check to spell for American, British, Canadian, and Australian English.
    • Plagiarism: This feature helps you detect if a text has been plagiarized by comparing it with over eight billion web pages.
    • Wordiness: This tool will help you check your writing for long and hard-to-read sentences. It also shows you how to shorten sentences so that they are more concise.
    • Passive Voice: The program also notifies users when passive voice is used too frequently in a document.
    • Punctuations: This feature flags all incorrect and missing punctuation.
    • Repetition: The tool provides recommendations for replacing the repeated word.
    • Proposition: Grammarly identifies misplaced and confused prepositions.

    • Plugins: It offers Microsoft Word, Microsoft Outlook, and Google Chrome plugins.

    What is ProWritingAid?

    ProWritingAid is a style and grammar checker for content creators and writers. It helps to optimize word choice, punctuation errors, and common grammar mistakes, providing detailed reports to help you improve your writing. 

    ProWritingAid can be used as an add-on to WordPress, Gmail, and Google Docs. The software also offers helpful articles, videos, quizzes, and explanations to help improve your writing.

    Features of ProWriting Aid

    Here are some key features of ProWriting Aid:

    • Grammar checker and spell checker: This tool helps you to find all grammatical and spelling errors.
    • Find repeated words:  The tool also allows you to search for repeated words and phrases in your content.
    • Context-sensitive style suggestions:  You can find the exact style of writing you intend and suggest if it flows well in your writing.
    • Check the readability of your content: Pro Writing Aid helps you identify the strengths and weaknesses of your article by pointing out difficult sentences and paragraphs.
    • Sentence Length: It also indicates the length of your sentences.
    • Check Grammatical error: It also checks your work for any grammatical errors or typos, as well.
    • Overused words: As a writer, you might find yourself using the same word repeatedly. ProWritingAid's overused words checker helps you avoid this lazy writing mistake.
    • Consistency: Check your work for inconsistent usage of open and closed quotation marks.
    • Echoes: Check your writing for uniformly repetitive words and phrases.

    Difference between Grammarly and Pro-Writing Aid

    Grammarly and ProWritingAid are well-known grammar-checking software. However, if you're like most people who can't decide which to use, here are some different points that may be helpful in your decision.

    Grammarly vs ProWritingAid

    • Grammarly is a writing enhancement tool that offers suggestions for grammar, vocabulary, and syntax whereas ProWritingAid offers world-class grammar and style checking, as well as advanced reports to help you strengthen your writing.
    • Grammarly provides Android and IOS apps whereas ProWritingAid doesn't have a mobile or IOS app.
    • Grammarly offers important suggestions about mistakes you've made whereas ProWritingAid  shows more suggestions than Grammarly but all recommendations are not accurate
    • Grammarly has a more friendly UI/UX whereas the ProWritingAid interface is not friendly as Grammarly.
    • Grammarly is an accurate grammar checker for non-fiction writing whereas ProWritingAid is an accurate grammar checker for fiction writers.
    • Grammarly finds grammar and punctuation mistakes, whereas ProWritingAid identifies run-on sentences and fragments.
    • Grammarly provides 24/7 support via submitting a ticket and sending emails. ProWritingAid’s support team is available via email, though the response time is approximately 48 hours.
    • Grammarly offers many features in its free plan, whereas ProWritingAid offers some basic features in the free plan.
    • Grammarly does not offer much feedback on big picture writing; ProWritingAid offers complete feedback on big picture writing.
    • Grammarly is a better option for accuracy, whereas ProWritingAid is better for handling fragmented sentences and dialogue. It can be quite useful for fiction writers.

    ProWritingAid VS Grammarly: Pricing Difference

    • ProWritingAid comes with three pricing structures. The full-year cost of ProWritingAid is $79, while its lifetime plans cost $339. You also can opt for a monthly plan of $20.
    • Grammarly offers a Premium subscription for $30/month for a monthly plan  $20/month for quarterly and $12/month for an annual subscription.
    • The Business plan costs $12.50 per month for each member of your company.

    ProWritingAid vs Grammarly – Pros and Cons

    Grammarly Pros

    • It allows you to fix common mistakes like grammar and spelling.
    • Offers most features in the free plan
    • Allows you to edit a document without affecting the formatting.
    • Active and passive voice checker
    • Personal dictionary 
    • Plagiarism checker (paid version)
    • Proofread your writing and correct all punctuation, grammar, and spelling errors.
    • Allows you to make changes to a document without altering its formatting.
    • Helps users improve vocabulary
    • User-friendly interface
    • Browser extensions and MS word add-ons
    • Available on all major devices and platforms
    • Grammarly will also offer suggestions to improve your style.
    • Enhance the readability of your sentence
    • Free mobile apps 
    • Offers  free version

    Grammarly Cons

    • Supports only English 
    • Customer support only via email
    • Limits to 150,000 words
    • Subscription plans can be a bit pricey 
    • Plagiarism checker is only available in a premium plan
    • Doesn’t offer a free trial
    • No refund policy
    • The free version is ideal for basic spelling and grammatical mistakes, but it does not correct advanced writing issues.
    • Some features are not available for Mac.

    ProwritingAid Pros

    • It offers more than 20 different reports to help you improve your writing.
    • Less expensive than other grammar checkers.
    • This tool helps you strengthen your writing style as it offers big-picture feedback.
    • ProWritingAid has a life plan with no further payments required.
    • Compatible with Google Docs!
    • Prowritingaid works on both Windows and Mac.
    • They offer more integrations than most tools.

    ProWritingAid Cons

    • Editing can be a little more time-consuming when you add larger passages of text.
    • ProWritingAid currently offers no mobile app for Android or iOS devices.
    • Plagiarism checker is only available in premium plans.
    • All recommendations are not accurate

    Summarizing the Ginger VS Grammarly: My Recommendation

    As both writing assistants are great in their own way, you need to choose the one that suits you best.

    • For example, go for Grammarly  if you are a non-fiction writer
    • Go for ProWritingAid if you are a fiction writer.
    • ProWritingAid is better at catching errors found in long-form content. However, Grammarly is more suited to short blog posts and other similar tasks.
    • ProWritingAid helps you clean up your writing by checking for style, structure, and content while Grammarly focuses on grammar and punctuation.
    • Grammarly has a more friendly UI/UX whereas; ProWritingAid offers complete feedback on big picture writing.

    Both ProWritingAid and Grammarly are awesome writing tools, without a doubt. but as per my experience, Grammarly is a winner here because Grammarly helps you to review and edit your content. Grammarly highlights all the mistakes in your writing within seconds of copying and pasting the content into Grammarly’s editor or using the software’s native feature in other text editors.

    Not only does it identify tiny grammatical and spelling errors, it tells you when you overlook punctuations where they are needed. And, beyond its plagiarism-checking capabilities, Grammarly helps you proofread your content. Even better, the software offers a free plan that gives you access to some of its features.

Social activities

incubatorPolyteco is a rapidly-growing company with the mission extending far beyond the framework of commercial projects. In today's conditions of expanding globalization, we at Polyteco understand the importance of our social role in the society. With every order we help materialize new ideas and innovations, thus helping promote science, and the science is the cornerstone of progress.

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Kyiv Polytechnic Institute

kpi logoThe team of Polyteco specializes on developing professional software products and consists of the best graduates, post-graduates and talented professors of National Technical University of Ukraine 'Igor Sikorsky Kyiv Polytechnic Institute' (below – NTUU 'KPI'), one of the Europe's largest tech universities.

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