Esports Betting / Underdog Review / Underdog App: Download the Underdog app and play fantasy contests

Underdog App: Download the Underdog app and play fantasy contests

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Last Updated on 13/07/2026

If you follow fantasy sports, chances are you have already come across the Underdog app. It gives users access to a range of fantasy contest formats across major sports, with a mobile experience that mirrors the core features available on desktop.

Available products vary by state, so it is worth checking what is offered in your location before signing up. This guide looks at the Underdog app experience, including contest formats, app usability, payments, support, and the current sign-up offer. New customers can currently claim a 'play $5, get $50 in bonus entries' offer when signing up!

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  • Low budget tournaments
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Must be 18+ (19+ in AL, NE; 19+ in CO for some games; 21+ in AZ, MA, and VA) and present in a state where Underdog Fantasy operates. Terms apply. Concerned with your play? Call 1-800-MY-RESET or 1-800-GAMBLER or visit www.ncpgambling.org. NY: Call the 24/7 HOPEline at 1-877-8-HOPENY or Text HOPENY (467369)

A brief overview of the Underdog app

Underdog is a Daily Fantasy Sports (DFS) platform that offers a variety of Fantasy sports contests in a number of sports leagues. This includes the NFL, NBA, MLB, NHL, and PGA, to name a few.

Depending on your location, Underdog specializes in three categories of Fantasy Sports contests:

  • Best Ball contests
  • Daily and weekly snake drafts
  • Pick'em contests, which are further categorized into Underdog rivals contests and Higher/Lower contests

Regardless of being a relatively newer Fantasy sports platform, Underdog has surpassed many people's expectations by providing top-notch quality Fantasy services, as we've explained in our Underdog review. Underdog currently has an app available for both iOS and Android smartphones.

With that being said, let's begin the Underdog app review.

Underdog Sports App: Pros & Cons
Underdog Sports App: Pros & Cons
  • A wide range of Fantasy sports contests in its three main types of contests
  • A fantastic sign-up bonus and other promotions
  • The best Best Ball tournaments
  • Available products vary by state
  • Payment options are more limited than some competitors

Usability and overall design of the app

Starting this Underdog app review is a look at its overall layout and design. The app itself has quite an inviting design if you ask us. The app's theme colors, which are a mix of mainly yellow and white, are lively and grab the attention.

When it comes to the usability of the Underdog sports app, it doesn't disappoint, in our opinion. When you open the app, you'll easily see the sign-in and sign-up tabs. On the app's homepage, you'll see the main highlights of the top contests and the upcoming ones. At the top of the app's lobby, you'll see a section allowing you to switch to the Drafts, Pick'em, News Feed, Live, Rankings, and Results sections. So, it's safe to say that navigating this Underdog app is easy.

The registration process

You can sign up for an account on the Underdog app. You'll be glad to know that the registration process is relatively straightforward. Just like in most other DFS sites, you'll also be required to provide some basic details when registering for an account on the app.

Once you sign up for an account on the Underdog app, you'll receive $50 in Fantasy Bonus Entries when you play $5.

To avail of the promo, here's what you need to do as a new player.

You must be at least 18 (19+ in Alabama and Nebraska; 19+ in Colorado for some games; 21+ in Arizona, Massachusetts, and Virginia) and present in a state where Underdog operates. The offer is not valid in  Maryland, Michigan, New Jersey, New York, Ohio, or Pennsylvania.

Note that Terms and Conditions apply. Concerned with your play? Call 1-800-MY-RESET or visit www.ncpgambling.org; NY: Call the 24/7 HOPEline at 1-877-8-HOPENY or Text HOPENY (467369).

Here's a step-by-step guide on how to sign up for an account on the Underdog app.

Step one

Download the Underdog app on either Google Play Store or the iOS App Store

Step two

Click on our “Sign-up” tab

Step three

A registration form will appear. Now, go ahead and fill in your details. This includes your preferred username, email address, password, and date of birth

Step four

Enter your promo code or your referrer’s username. Don't worry if you don't either of the two. Just click the “don't have one” section under the promo code section and one code will automatically be generated

Step five

Once you're done filling in the required information, click the “Sign up” tab at the bottom, and that's it! You now have an Underdog account.

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Must be 18+ (19+ in AL, NE; 19+ in CO for some games; 21+ in AZ, MA, and VA) and present in a state where Underdog Fantasy operates. Terms apply. Concerned with your play? Call 1-800-MY-RESET or 1-800-GAMBLER or visit www.ncpgambling.org. NY: Call the 24/7 HOPEline at 1-877-8-HOPENY or Text HOPENY (467369)

Access to payment methods

First things first, the Underdog sports platform has fewer payment methods available, which can be seen as a downside. It currently accepts PayPal, VISA, MasterCard and Discover online banking payments.

That aside, accessing these payment methods on the Underdog app is easy. You can do so by clicking on the Cashier section of the app.

Customer support

The Underdog app also has few customer service channels, which is also a downside as there are no other options in case you cannot contact the platform's customer support team using a particular customer service channel.

It has a chat box section that allows you to forward your inquiries or complaints to an Underdog agent. There's also a contact form, which you can fill in your queries and complaints.

Availability and legitimacy

This Underdog  app review wouldn't be complete if we didn't discuss its availability and legitimacy. You might be wondering: Is the Underdog app legit? You'll be glad to know that it is absolutely legitimate.

Besides the fact that it offers the best fantasy sports services, it has also received support from a number of famous people, like Kevin Durant and Mark Cuban. This proves just how legit this platform is.

When it comes to availability, Underdog is available in all of the states in the US, except:

  • Connecticut
  • Delaware
  • Hawaii
  • Idaho
  • Iowa
  • Louisiana
  • Montana
  • Nevada
  • Washington
  • New Jersey

As we've explained in our Underdog eligible states guide, out of the states where the Underdog app is accessible, some states can only access the Drafts contests, that is, the Best Ball tournaments and Snake drafts. On the other hand, some states can only access the Pick'em games.

Final verdict: Is Underdog a good DFS app?

It's evident that the Underdog app offers top-tier quality fantasy sports services. For starters, it offers exciting fantasy sports contests. The Underdog app payout rates for these contests don't disappoint. The overall look and design of the app is impressive. We could go on and on about why this is a good fantasy sports app, but we've explained all that in this guide.

The limited payment methods and customer support channels are the only disadvantages we noticed on this platform. But in general, the Underdog app is definitely worth giving a try whether you are new to fantasy sports or an experienced player.

DFS Deal
4.8/5
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4.8/5
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Must be 18+ (19+ in AL, NE; 19+ in CO for some games; 21+ in AZ, MA, and VA) and present in a state where Underdog Fantasy operates. Terms apply. Concerned with your play? Call 1-800-MY-RESET or 1-800-GAMBLER or visit www.ncpgambling.org. NY: Call the 24/7 HOPEline at 1-877-8-HOPENY or Text HOPENY (467369)

Underdog app FAQ

🔎 Is the Underdog app safe?

Underdog provides official rules, support resources, responsible gaming information, and secure payment options through its platform and app.

💴 Does the Underdog app support withdrawals?

Yes. Underdog currently supports withdrawals through PayPal, Trustly, and Paysafe, and requests are typically processed within 48 to 72 hours.

❓ Is the Underdog app available in my state?

Underdog is available in many US states, but the exact products offered depend on your location. Checking the current state page is the best way to confirm what is available where you are.

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