Onyx Odds review for 2025: Is Onyx Odds legit?
Onyx joined the sweepstakes sportsbook scene in 2024. What immediately caught my attention was its broad range of betting options. You can place bets on 20+ competitions, including major leagues like the NFL, NBA, and NCAAF.
During my Onyx Odds review, I received 1,000 Onyx Coins as a new bettor, plus a first purchase bonus on an optional Onyx Coin pack. The site runs smoothly on mobile, making it easy to bet anywhere. In this review, I’ll cover Onyx bonuses, site usability, customer support, and everything else you should know before getting started.
- Wide range of popular sports
- 24/7 email support
- Mobile-optimized site
- No live chat
How the Onyx Odds sweepstakes sportsbook works
At first glance, Onyx Odds looks like a regular sports betting site, but it’s actually a sweepstakes sportsbook that uses two virtual currencies: Onyx Coins and Onyx Cash.
Onyx Coins are used to make sports predictions in standard mode for entertainment only. They can be purchased through optional Onyx Coin packs, which may also include Onyx Cash. Onyx Coins are equivalent to Gold Coins. On the other hand, Onyx Cash is used in promotional mode for sports betting. This virtual currency can’t be purchased and is only awarded as a bonus. On Onyx, bettors can redeem Onyx Cash for real prizes once they meet the 1x playthrough requirement and hold at least 20 Onyx Cash. Onyx Cash is equivalent to Sweepstakes Coins.
Onyx Odds bonuses for new and existing bettors
During my Onyx Odds review, I checked out the main bonuses available on the sweepstakes sportsbook to see what new and existing bettors can claim. Here’s what I found:
Welcome bonus
Just as I received a no-purchase welcome bonus during my Fliff review, Onyx also offers new bettors a similar bonus. I got 1,000 Onyx Coins without using an Onyx promo code. I also received a first purchase deal on optional Onyx Coin packs. This offer includes a 100% match of up to 100 bonus picks when you purchase at least $10 worth of Onyx Coins.
Weekend bonus on sign up
Although I didn’t get a daily login bonus on Onyx like I experienced during my Sportzino review, the sweepstakes sportsbook, however, rewarded me with 15 Onyx Cash bonus picks upon signing up. Onyx gives 5 Onyx Cash bonus picks per day for your first three days on the site.
Referral bonus
Referral bonuses are a common feature on top sweepstakes sportsbooks, and Onyx is no exception. When you share your referral link with a friend and they sign up using your link, then make an optional Onyx Coin pack purchase of $10, they get 100 bonus picks, while you receive 25 bonus picks in return.
Social media giveaway contests
Onyx maintains active social media accounts on Instagram, Facebook, and X (formerly Twitter). Among these platforms, most of the giveaway promotions for Onyx Coins and Onyx Cash are hosted on its X account. For example, the sweepstakes sportsbook recently offered its followers an opportunity to get 100 Onyx Cash in bonus picks. To participate, bettors needed to retweet and like the post, follow the Onyx account, and comment their Onyx username.
Mail-in bonus
This is one bonus that many sweepstakes sportsbooks, such as Legendz, don’t overlook. On Onyx, you can get 5 Onyx Cash by sending a mail-in request for an Onyx Cash bonus. Just follow the instructions in the sweepstakes rules section of the site, and be sure to include your one-time postal request code on your request card.
Click the bonus link here to read a more detailed review of Onyx bonuses.
100% purchase match for up to 100 in Onyx Cash Free Picks Onyx Odds social sportsbook usability and appearance
One of the first things I always evaluate during my sweepstakes sportsbook reviews is usability. Like many sites, Onyx places my balance at the top of the page, which makes it easy to track. I especially appreciated the clear color distinction between the two bet modes. When betting in standard mode with Onyx Coins, the site uses a purple theme. In contrast, when using Onyx Cash in promotional mode, the interface shifts to a green theme. This design choice lets you know which mode you’re in at a glance.
Just below the balance bar, there’s a horizontal layout that displays the available sports you can make your picks on, including NFL, NCAAF, and boxing. The site also features rotating banners that highlight ongoing promotions. Meanwhile, the main homepage features various sports competitions, each with its own matchups and available odds. You’ll also notice a clearly labeled “More Markets” button that expands additional betting options. I appreciate this level of intuitiveness. It’s especially helpful for new bettors who may not be familiar with the site or sports picks in general.
On the static menu bar, there are three main buttons: Home, My Picks, and Account. When I clicked My Picks, I found several tab sections that categorize your betting activity, such as “Won,” “Open,” “Lost,” “Refunded,” and more. Clicking on the Account tab opens a detailed section where you’ll find your username, ID, and balance, along with options like Purchase, Redeem, and View Pending Redemptions. Your referral bonus link is also conveniently listed there.
Under the General section, you’ll find tools like change password, contact us, and transaction history. The policies section contains links to the privacy policy, terms of use, sweepstakes rules, responsible social gaming, and postal request code. There’s also the option to close the account or log out when needed. Placing bets, whether for live betting or pre-match events, was smooth and lag-free. Browsing through the markets was quick and effortless. The loading speed of the site is commendable, making for a seamless live betting and overall user experience.
As for the site’s appearance, Onyx uses a black background accented by green or purple tones, depending on your betting mode. This sleek color scheme gives Onyx a modern and professional look.
Onyx Odds is mobile-optimized – Add the site to your home screen
While reviewing Onyx, I didn’t find any dedicated mobile app on the Google Play Store or Apple App Store, nor a standalone web-based app. However, you can still enjoy an app-like experience by adding the site directly to your mobile homescreen.
I opened the Onyx website in my browser and tapped the “Add to Home Screen” option. Within seconds, a shortcut appeared on my phone, giving me quick, one-tap access to the sportsbook anytime. It feels just like using an app, minus the need for a download.
Onyx is designed entirely for mobile use. There’s currently no desktop version available. I found the site to be fully mobile-optimized, with a clean interface that fits perfectly on any smartphone screen.
Optional Onyx Coins purchase methods and Onyx Cash redemption options
Onyx offers several convenient methods for purchasing optional Onyx Coins packs. The available options include Visa, Mastercard, American Express, Discover, PayPal, Trustly, and MuchBetter. When it comes to redeeming eligible Onyx Cash for real cash prizes, once you meet the required playthrough and minimum threshold, an ACH transfer is the only available method.
To make purchases or process Onyx Cash redemptions, your account needs to be verified. This involves both identity and address verification. Onyx accepts a government-issued passport or driver’s license for identity verification, while a utility bill or bank statement can be used to confirm your address.
Onyx Sportsbook offers reliable email support
During my review, I found that email support is currently the only direct customer service option available on the site. I tested it out myself and received a detailed, helpful response in under 15 minutes, which was quite impressive. In addition to email support, Onyx also features a comprehensive FAQ section located under the “Contact Us” page. It covers a wide range of topics, including redemption, optional Onyx Coin pack purchases, account verification, bonuses, and more, making it a great first stop for quick answers.
However, I do think Onyx could improve by adding more customer support options. A live chat feature would be a perfect addition for faster, real-time assistance, especially for bettors who prefer instant responses.
For now, email remains a reliable choice, as responses are prompt and well-detailed. You can also reach out through Onyx’s social media channels on Instagram, Facebook, and X (formerly Twitter). I tried them as well and received helpful responses there, too.
| Customer Service | |
|---|---|
| Available Languages: | English |
| Email: | [email protected] |
| Telephone: | +1 334-471-4060 |
Onyx is legit – Security and responsible gaming
Onyx isn’t a traditional sportsbook, so it doesn’t require a gaming license to operate. Instead, it runs under the US sweepstakes law; therefore, you don’t have to make an initial Onyx Coin pack purchase to place picks or participate.
The sweepstakes sportsbook is also limited to US states where sweepstakes play is permitted. According to its terms of use, Onyx Odds' legal states cover the majority of the US. However, a few states are excluded, including Washington, Idaho, Louisiana, Michigan, Montana, and Nevada. Plus, only bettors aged 18 and above can use Onyx.
In terms of security, the sweepstakes sportsbook employs encryption technology to protect all accounts and personal information. It also maintains a clear privacy policy outlining how data is handled safely.
As part of its commitment to responsible gaming, Onyx provides several tools for responsible social gaming. Bettors can set daily purchase limits, restrict the amount of Onyx Coins played per day, self-exclude, or close their accounts if needed.
Onyx loyalty program – Still evolving
Before signing up, I noticed Onyx promoting a VIP or loyalty program on its homepage, so I expected to see one once I joined. According to the description, bettors can receive VIP perks the more they play, collecting loyalty points that supposedly help elevate their Onyx status over time.
However, after signing up and thoroughly using the sweepstakes sportsbook, I couldn’t find any visible loyalty program. There were no tiers, no levels, and no indication that bettors are rewarded or ranked based on their gameplay. But, since Onyx is still relatively new in the sweepstakes space, let's hope a structured loyalty or VIP program could roll out in the near future. It’s definitely something I’ll be watching for as the site continues to evolve.
Available sports on Onyx – What to expect
Onyx offers 20+ sports to make picks on, covering both popular and niche categories. You’ll find major leagues like the NFL, NCAA, NBA, MLB, tennis, La Liga, UCL, MLS, and boxing. The site also supports live betting, enabling bettors to make picks in real-time as the game unfolds.
When it comes to betting markets, Onyx delivers a variety. You can make picks on spread, total, moneyline, anytime touchdown scorers, player touchdowns, player passing yards, 1st half total points, and player passing attempts, among others.
Also, Onyx offers competitive odds across its sports lineup. For instance, in the NFL matchup between the Denver Broncos and New York Jets, the moneyline odds were listed at -425 for the Denver Broncos and +300 for the New York Jets.
100% purchase match for up to 100 in Onyx Cash Free Picks How to make the most of your experience on Onyx
Getting the best out of Onyx is all about knowing the ropes and making smart choices. While reviewing, I’ve learned a few tips that can really improve your experience. Whether you’re new to sweepstakes sportsbooks or just looking to get more from your picks, these steps will help you stay ahead, protect your account, and enjoy every moment on the site:
Read the site terms and conditions
Before making your picks, take a few minutes to read Onyx’s terms of use, even before you sign up. This is your guide to using the site without accidentally breaking rules that could restrict your account or cause you to forfeit your bonuses. For example, I learned that any account that remains inactive for 60 consecutive days automatically expires. To avoid this, log in regularly and responsibly. Also, terms and conditions do change, so it’s smart to check the page now and then to stay updated.
Verify your identity and address
To unlock the full Onyx experience, verify your identity after registration. Doing this allows you to make optional Onyx Coin pack purchases and request Onyx Cash redemption when you meet the required conditions. I found this step really smooth and reassuring as it gives you full access to all features without any surprises.
Use responsible gaming tools
Onyx offers responsible gaming tools to help you manage your betting activity. You can set limits on optional Onyx Coin pack purchases or even self-exclude if needed. I personally reached out via email to set a limit, and it felt reassuring to know I had full control over my experience.
Conclusion – Onyx is a safe sweepstakes sportsbook offering a premium betting experience
From my Onyx review, I found the site to be a safe and reliable sweepstakes sportsbook. It uses strong encryption to protect bettors' data and fully complies with US sweepstakes law.
What makes Onyx stand out is its broad selection of over 20 sports, including major competitions like the NFL, NBA, MLB, tennis, UFC, La Liga, and boxing. The odds are quite competitive compared to other sweepstakes sportsbooks. I also appreciated the variety of betting markets available within each matchup, such as anytime touchdown scorer, player touchdowns, player passing attempts, and 1st half total points. These options make the overall betting experience feel more dynamic.
Customer support is available via email 24/7, providing quick assistance. However, there’s currently no live chat feature. Hopefully, that’s something Onyx will add in the future as the site continues to evolve. Although Onyx doesn’t yet have a dedicated mobile app, its website is fully optimized for mobile use, and you can easily add it to your home screen for quicker access.
When you sign up, you’ll receive a no-purchase welcome bonus of 1,000 Onyx Coins, automatically credited to your account, no promo code needed. You'll also get a weekend bonus worth 15 Onyx Cash in bonus picks. Existing bettors can claim referral bonuses, participate in social media giveaway contests, and even send a mail-in request that offers 5 Onyx Cash.
Click the banners on this page to sign up for Onyx and start making your picks today.
100% purchase match for up to 100 in Onyx Cash Free Picks