Want to put a fiat gateway right on your platform? That’s a smart move.
By offering an easy way to buy bitcoin, ether and a range of other cryptocurrencies and tokens, your users can go from cash to crypto in no time — without needing to source their digital currencies on another website.
Fiat-to-crypto onramps are an increasingly popular solution, as they can save you both time and resources better served building the foundations for a crypto and Web3 future.
Often, in these discussions, Sardine and Topper are brought up. Rightfully so: both are strong solutions for onboarding new users.
Wondering which one can better meet your needs? In this article, we’ll compare the two.
About Sardine
Sardine boasts instant fiat-to-crypto transactions across 20+ chains and the US’s highest ACH authorization rates.
The pros and cons of Sardine
PROS
CONS
* Offers a US alternative to credit cards for higher success rates (instant ACH)
* Low-KYC option available
* US-only, more recently started to extend country coverage
* Limited payment method support
* Strict fraud-engines leads to false fraud restrictions on real users
About Topper
From crypto heavyweight Uphold (launched in 2015) comes the all-new Topper: a contender that rapidly gained market share due to great global coverage and low KYC friction.
The pros and cons of Topper
PROS
CONS
* Great global coverage
* Low KYC friction
* Poor integration documentation
* Limited number of fiat currencies supported
* High transaction fees
How do Sardine and Topper compare?
Sardine
Topper
Key region(s)
North America
North America
Fiat currencies
51
26
Cryptocurrencies
33
190
Payment methods
3
2
Supported countries
85
145
Trustpilot score
3.2
Unavailable
Networks supported
16
22
Integration fees?
✅
✅
Free with Onramper?
✅
✅
Which fiat onramp is best for my crypto business?
As the previous comparison demonstrates, both Sardine and Topper have their own unique strengths. If you caught our latest report, you’ll know that there’s no real answer to which onramp is best — because it’s different, not for every business, but for every user.
Sardine may work great for a segment of your user base, while being unusable for another segment. Topper could face the same issue, albeit with different segments.
Because over 70 factors influence a transaction, the reality is that a single onramp can never cater to a meaningful number of users. Serious players in the crypto and Web3 spaces should consider the inclusion of a whole suite of onramps.
Get the best of all onramps with a single integration
Integrating the multiple onramps required for truly global coverage can be both expensive and time-consuming. Why waste resources adding and maintaining them when you could achieve better results with just eight lines of code?
The Onramper widget is for businesses seeking seamless user onboarding — without the compliance, maintenance and integration headaches that come with DIY solutions.
Our fiat-to-crypto onramp aggregator puts over 15 of the industry’s best onramps directly on your platform. Reach out today to find out how our state-of-the-art fiat gateway can help you win new users.
You spend
120
EUR
You get
0.072
ETH
Polygon network
1 EUR ≈ 0.00002 ETH
By
Coinify
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Card
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Buy ETH
You spend
120
EUR
You get
0.072
ETH
Polygon network
1 EUR ≈ 0.00002 ETH
By
Banxa
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Sell
Pay via
Card
Bank
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Buy ETH
You spend
120
EUR
You get
0.072
ETH
Polygon network
1 EUR ≈ 0.00060 ETH
By
Onmeta
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SEPA bank transfer
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