
With the rise in the popularity of prediction markets, you might be wondering which is the best one to sign up with. For most users, their research will end up in a straight shootout: Kalshi vs Polymarket.
At first glance, they might look very similar, but in this guide, we’ll pick apart what makes them work as well as those all-important small differences. You’ll see the details on funding your account, reputation, and how easy each platform is to use. That way, you can make an informed choice and find the best platform for you.
When anything becomes more popular, plenty of users are keen to get started, but they might not know where. When it comes to prediction markets, there are two clear front-runners - Polymarket and Kalshi. Rather than just flip a coin, we’ve put together a breakdown of the best parts of each platform so you can find what works for you - but before we do that, you’ll need a bit of background on how these platforms work.
Explaining prediction markets like Polymarket and Kalshi isn’t easy, but in a nutshell, they let people trade the outcome of future real-world events. This could be who’ll win an election, will it snow in New York at Xmas, pretty much anything. You buy a yes or no contract on the question, and the price will depend on how likely the market thinks that event is.
Contracts are priced between $0.01 and $1.00, so if a yes contract is priced at $0.56, then there is an implied probability of 56% that it will happen. These markets can move as the event grows closer, so they can be traded or held onto until the event resolves and the contract is worth either $1 or nothing. You can buy as many contracts as the market has available, so you are not just predicting outcomes with small amounts, although you can if you wish.
Here’s a quick comparison of the two:
| Platform | Funding type | Payment methods |
| Polymarket | Crypto only | USDC |
| Kalshi | FIAT | Cards, Bank transfer, Apple/Google Pay |
Now that the question of what event prediction is is answered and you know about how each platform operates, it’s time to go into the details, starting with signing up. Each process is not hard, but as with everything, a little foreknowledge and preparation go a long way to making things go smoothly.
If you haven’t already got one, get a crypto wallet that is USDC compatible
Buy some USDC to fund your account a Polymarket
Sign up with Polymarket using the links on this page - you can let your Google account do the hard work for you here
Deposit your USDC in your new Polymarket account
Funds should appear quickly, so start browsing the prediction markets
Choose a market and pick yes or no
Trade you when you are happy with a profit, or to mitigate a loss, or
Hold on to the event that resolves
Notes: There are no fees charged by Polymarkets, but network fees can apply. There is also the crypto learning curve to consider if you have never used an eWallet before.
Visit Kalshi using the links on this page
Open an account using your email and complete any verification required
Link your payment method - card, bank transfer, or Google/Apple Pay
Deposit funds in USD, and wait for it to show in your account
Browse the prediction markets
Choose a market and pick yes or no
Trade you when you are happy with a profit, or to mitigate a loss, or
Hold on to the event that resolves
Notes: Time limits for deposits will depend on your chosen payment method. Providers may charge transaction fees.
As you can see, there is no PhD required to get started here, making it very newbie-friendly, so it’s a case of picking which one suits you best. If you have a good grounding in using crypto, the Polymarkets is very eye-catching, but if you like to keep things a bit more old school, then Kalshi might provide a better starting point, as there are no extra accounts to open or new things to learn before you even start.
We also need to look at the reputations of both. Currently, prediction markets are legal in the US, so no worries about legitimacy, but as these situations can be fluid, always check the T&Cs before signing up anywhere. Both are overseen by the CFTC, but Polymarkets has been authorized much more recently after a past filled with regulatory scrutiny.
As we’ve already covered, the biggest differences happen before you sign up, as they are both very easy to use. They look very similar, so if you can find your way around one, you can find your way around the other. You’ve got your different markets across the top, as well as telling you what is breaking news or trending. There are the most popular markets displayed in front of you for easy access, and you can compare the two easily to see the best prices or even scope out the best options for some Kalshi vs Polymarket arbitrage.
A simple click takes you into your chosen market, which will show you price movements and, more importantly, the exact rules of the market, with the given resolution date. This is as simple as it gets, and you can’t really separate the two here - in fact, if you want something different, you’ll need to look at our companion Kalshi vs Robinhood guide.
Of course, it’s not just the desktop experience, so we need to look at the apps before we close off this Kalshi vs Polymarket comparison. There are native apps for both, and they are available in the approved app stores for both iOS and Android. The Polymarket app is popular with Apple users, but there appear to be teething problems on Android, whereas Kalshi is highly rated by both sets of users. On our own road test, we did not encounter any problems and found the apps to be fast, responsive and in both cases a worthy companion to the desktop versions.
If you want to dive into prediction markets, then there are two clear options - Polymarket and Kalshi. In this guide, we’ve looked at how these platforms work and the many similarities they have when it comes to usability. That's not the whole story, and the fact that one is Fiat-based and the other crypto-first will no doubt have an effect on your final decision about where to start. Whatever you decide, the links on this page will take you exactly where you need to go, so you can see for yourself, or even look at both side by side before opting for one or the other.
Both prediction market platforms look similar and are equally easy to use, so the real difference for you might be how you fund your account. Polymarket is crypto-based, so you’ll need to have or get an eWallet and USDC before starting, whereas Kalshi can be funded with FIAT currency using a card and banking payments.
Apps for both platforms are available from the regular apps stores, and Kalshi is highly rated by both iOS and Android users. On the other hand, the Polymarket app gets plenty of positive feedback from Apple users, but may have work to do on Android, where the rating is much lower.
Unlike Polymarket, which uses crypto, Kalshi uses FIAT currency, USD, to fund accounts. You can do this using the usual cards and banking options, as well as Apple and Google Pay, although payment methods are being updated all the time, so check when you sign up.