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Buy Polkadot


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What is Polkadot?

Polkadot’s primary mission is to help multiple separate seemingly incompatible blockchains all work together like they are compatible. Traditional blockchains operate pretty much all alone, limiting their ability to communicate and share data.

Polkadot changes the game by connecting these blockchains — like a digital highway where information flows freely between different projects.

The DOT token or cryptocurrency is used in the Polkadot ecosystem.

The relay chain and parachains

Polkadot’s architecture revolves around the Relay Chain. Around it orbit various parachains — individual blockchains with specific uses. These parachains can specialise in anything from decentralised finance (DeFi) to gaming or identity management.

Because Polkadot doesn’t have apps on it, it’s called a zero layer, because it is a foundation layer. But the parachains around it do have dApps (apps made on a blockchain rather than the internet). Here are some really cool parachains to look into.

Imagine Polkadot as a bustling city with different districts, each serving a unique purpose. The Relay Chain ensures seamless communication between these districts.

Scalability and efficiency

By spreading transactions across multiple parachains, it achieves faster processing and efficient resource use. Unlike congested highways during rush hour, Polkadot’s lanes remain open and efficient.


Developers can create their own parachains using the Substrate framework. It’s like building with Lego blocks — assemble your unique blockchain, connect it to Polkadot, and benefit from the network’s security and interoperability.

This flexibility encourages innovation and rapid development.

DOT Token

Polkadot (DOT) was launched through its initial coin offering (ICO) in October 2017.

During the ICO, the initial price of Polkadot was US$0.29, and a total of 2.24 million tokens were offered. Since then, Polkadot has evolved significantly, and its price has experienced wild fluctuations. At its all-time high price, it was trading at US$55, in October of 2021, however at the time of writing the price of DOT was US$7.70.

The native DOT token serves several purposes. It can just be a speculative investment. People buy the token at what they think is a low price, and sell when they think it won’t go much higher. (Or they buy it at the top of the market and end up having to sell after the price drops!)

Other uses of DOT

Governance: DOT holders participate in decision-making, shaping Polkadot’s future.

Staking: Lock up DOT to secure the network and earn rewards.

Bonding: Parachains use DOT as collateral to secure a slot on the Relay Chain.

Owning DOT means being an active participant in the Polkadot ecosystem.

Who is Gavin Wood?

Polkadot’s co-founder, Gavin Wood, played a pivotal role in Ethereum’s early days. His vision for Polkadot combines scalability, security, and innovation.

Where is Polkadot headed?

Polkadot’s ecosystem is vibrant and expanding. New projects, collaborations, and use cases emerge regularly. As more parachains join, the network becomes richer and more valuable.

Many people who invest in Polkadot see themselves positioning themselves for tomorrow. Interoperability will be a critical factor as the crypto landscape evolves. However, although Polkadot is a promising project, no one knows for sure what will happen in the future. Don’t invest anything you can’t afford to lose.

Energy Efficiency

Polkadot’s proof-of-stake (NPoS) model consumes significantly less energy than traditional blockchains. It’s environmentally friendly and sustainable.

How to Buy Polkadot (DOT)

If you’re interested in buying Polkadot (DOT) through CoinJar, here’s a step-by-step guide.

Download the CoinJar App

First, download the CoinJar app on your iOS or Android device. You can find it on app stores.

Create an Account

Sign up for a CoinJar account within the app. Verify your identity, which usually takes just a couple of minutes.

Make a Purchase

Once your account is set up and verified, you’re ready to buy Polkadot. Use your debit or credit card, or a bank transfer to make the purchase. CoinJar supports various payment methods, so choose the one that suits you best.

Congratulations! You’re now part of one of the longest-running crypto exchanges. Explore the app, manage your portfolio, and keep an eye on your Polkadot investment.

Polkadot: In Summary

Polkadot (DOT) isn’t just another cryptocurrency. It’s a multichain network designed to address scalability and interoperability issues faced by traditional blockchains.

Polkadot was founded by the Web3 Foundation.

This open-source project brought together some of the brightest minds in the blockchain industry. Their goal? To create a platform that enables seamless interaction between different blockchains.


Bank transfer, debit card or crypto?

Buy Polkadot instantly with your bank account, Visa or Mastercard debit card. Get cash in your account with ACH. Convert crypto-to-crypto with a single click.

How to buy Polkadot with CoinJar

Start your cryptocurrency portfolio with CoinJar by following these simple steps.
Step oneDownload the appGet the CoinJar app on iOS or Android.
Step twoCreate an accountSign up and verify your ID – it only takes a couple of minutes.
Step threeMake a purchaseBuy Bitcoin and more than 60 other cryptos with your bank account, Visa or Mastercard debit card.
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Frequently asked questions

Why buy Polkadot with CoinJar?

CoinJar is one of the longest-running crypto exchanges and has been designed from the ground up with security and ease-of-use in mind.

From the quick and intuitive sign-up process, to our lightning fast bank deposits and withdrawals, low fees starting at 0% (on CoinJar Exchange),and user-friendly iOS and Android app, CoinJar is the ideal crypto exchange whether you’re buying DOT for the first time or an experienced investor.

Where can I store my Polkadot?

You can store your Polkadot in a hardware wallet or on a trusted exchange. Hardware wallets (such as the Ledger) offer high level security, allowing you to store your crypto offline in a unit that only you have the password for.

However, exchanges such as CoinJar also provide excellent security, keeping more than 90% of our crypto in cold storage or private, multi-sig wallets and offering our users next-gen 2FA account protection as default.

Who created DOT?

Polkadot was created by Gavin Wood (a co-founder of Ethereum), Robert Habermeier and Peter Czaban.

How to buy Polkadot?

The best way to buy Polkadot is through a trusted exchange like CoinJar. We offer accurate prices, low fees and an easy-to-use, ultra-secure app.

What is the safest way to buy DOT?

The safest way to Buy Polkadot is through a trusted exchange with a proven track record.

CoinJar is one of the longest-running crypto exchanges and has been operating since 2013 with no unplanned downtime, security breaches or loss of customer funds.

We are registered with AUSTRAC and the FCA UK (for AML purposes) and work with some of the world’s largest payment providers, including Mastercard, Visa, Apple Pay and Google Pay.

Can I buy Polkadot with a Credit Card or Debit Card?

Yes – with CoinJar Instant Buy you can buy Polkadot with any locally-issued Visa or Mastercard. We also offer support for Apple Pay and Google Pay.

How is the price of Polkadot determined?

The price of DOT is determined by the international Polkadot market – basically, the price to be found on cryptocurrency exchanges locally and all around the world.

These prices tend to be the same (or very close) because any differences are smoothed out by arbitrage traders that buy at one exchange and sell at another.

Does Polkadot have a maximum supply?

Unlike Bitcoin, Polkadot does not have a maximum supply. New DOT tokens are issued to people who stake their DOT to help secure the network at a rate of 10% per year.

This means Polkadot is an inflationary currency. There are currently around 1.2 billion DOT tokens in existence.

What is Polkadot?

Polkadot is a multichain network that connects various blockchains, allowing them to communicate and share information. It’s like a fabric of interconnected dots, each representing a unique blockchain.

What is the Polkadot Relay Chain?

The Relay Chain is the heart of Polkadot. It coordinates communication between different parachains (the individual blockchains within Polkadot).

How can I buy Polkadot (DOT) tokens?

You can purchase DOT tokens on a cryptocurrency exchange like CoinJar. Use your bank account, debit card, or even a bank transfer to acquire DOT.

What is the purpose of Polkadot?

Polkadot aims to solve scalability and interoperability challenges faced by traditional blockchains. It enables seamless interaction between different blockchains, fostering innovation.

Is Polkadot a digital asset?

Yes, DOT tokens are digital assets within the Polkadot ecosystem.

Can I buy or sell DOT on a crypto exchange?

You can trade DOT on any reputable crypto exchange.

What affects the price of Polkadot?

Like any other asset, DOT’s price is influenced by supply and demand dynamics, market sentiment, and overall crypto trends.

How does the Polkadot protocol work?

Polkadot’s protocol ensures interoperability by connecting parachains through the Relay Chain. It also allows for easy blockchain innovation using the Substrate framework.

Is Polkadot for investment purposes only?

While Polkadot has investment potential, it’s essential to understand its technology and long-term vision. Always do thorough research before investing.

Is Polkadot a good investment?

It depends on your goals. Polkadot is a next-generation blockchain network that is secure, scalable, decentralized, and multi-chain. It connects blockchains, facilitating the exchange of data and value between previously incompatible networks (such as Bitcoin and Ethereum) in a trustless way.

Polkadot’s innovative concepts for scalability, interoperability, governance, and blockchain code updates have earned it the nickname the “Ethereum killer”. This could make it a good investment. However, nobody knows what will happen in the future.

How can I buy Polkadot using a bank transfer? What’s the process for buying DOT?

To purchase Polkadot using a bank transfer, download the CoinJar app. Verify your ID, and then deposit funds from your bank account to the exchange.

Use the deposited amount to buy Polkadot (DOT). It will then appear in your CoinJar wallet.

What is the Polkadot Network?

The Polkadot Network is a platform that enables interoperability between different blockchains. It allows various chains (called parachains) to connect and share information.

Polkadot’s architecture promotes scalability and flexibility, making it distinct from other blockchains.

How do cryptocurrency prices affect Polkadot?

Cryptocurrency prices, including that of Polkadot, fluctuate based on market demand, supply, and investor sentiment. Keep an eye on the current DOT price to make informed decisions.

Who are Parity technologies?

Polkadot was developed by Parity Technologies. They have made a groundbreaking blockchain technologies platform that revolutionises the way smart contracts and decentralised finance (DeFi) applications operate.

At its core, Polkadot employs a unique consensus mechanism known as Nominated Proof of Stake (NPoS), which allows token holders to actively participate in securing the network.

Through NPoS, nominators can stake their DOT tokens and nominate validators who play a crucial role in validating transactions and maintaining the blockchain.

Unlike traditional proof-of-work systems, Polkadot’s proof-of-stake consensus ensures scalability, lower transaction fees, and a more energy-efficient approach.

This innovative network fosters a peer-to-peer ecosystem where validators collaborate to achieve robust security and decentralisation, ultimately empowering the entire Polkadot community.

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