If you’re a SaaS platform searching for Finix competitors, then you’ve likely outgrown your current embedded payments provider. Whether you’ve tried Finix and want to switch, or you’re just looking for a similar solution that better fits the needs of your SaaS, you might be facing the following challenges:

1. You’re not satisfied with your current provider’s support: Contacting your provider is a hassle, and you could be waiting days before receiving a response. Your reputation could take a hit if you struggle to resolve merchant issues quickly.
2. You have limited control over the payment experience: Many platforms start with off-the-shelf or semi-embedded tools, only to find that they can’t alter key parts of their merchant journey. Without customizable onboarding, dashboards, or support flows, payments feel more like an add-on than a native part of your product, and that makes it harder for merchants to trust your solution.
3. You don’t feel in control of your pricing: With some payment providers, you can’t control what your merchants pay or add your own processing margin. This limits your ability to compete on price, differentiate your offering, or earn revenue from payments.

To help you find the provider that suits your SaaS platform, this article will look at five competitors to Finix.

In this article:

• Comparison table: Five Finix competitors
• Fiska
• Rainforest
• Tilled
• Cardknox (now known as Sola Payments)
• Stax

Fiska is an embedded payments solution specifically built for SaaS. If you’re looking for a payments partner that can help you take control of your payments, book a no-obligation call with our experts.

Comparison Table: five Finix alternatives for SaaS

Below is a quick comparison table that highlights key features for each top competitor to Finix:

Feature	Fiska	Finix1	Rainforest2	Tilled3	Cardknox / Sola4	Stax5
Target businesses	Small to medium SaaS platforms embedding omnichannel payments	SaaS platforms, marketplaces, and PayFacs needing configurable payments infrastructure	Vertical SaaS platforms	Software companies and platforms looking to offer PayFac-as-a-Service	ISVs, SaaS providers, developers, and merchants across online, mobile, and in-person channels	SaaS platforms, ISVs, SMBs, and agencies embedding or reselling payments
Pricing structure	Interchange-plus or fixed rate, with revenue shared with your SaaS	Flat rate, dynamic, and custom platform pricing options	Custom embedded payments pricing with platform revenue opportunities	Transparent PayFac-as-a-Service pricing model	Custom pricing with revenue-share options	Custom SaaS-friendly pricing and partnership models
Pre-certified POS terminals	Yes	Terminal support available, but pre-certified status not clearly stated	Terminal support available, but pre-certified status not clearly stated	Terminal support available, but pre-certified status not clearly stated	Card-present device support available, but pre-certified status not clearly stated	No clear public mention
Universal tokenization	Yes, universal cross-channel tokenization	Tokenization and network tokenization available, but not positioned as universal cross-channel tokenization	Stored payment methods available, but universal tokenization is not clearly claimed	Reusable payment methods available, but universal tokenization is not clearly claimed	Card-on-file tokenization available, but universal tokenization is not clearly claimed	Tokenization features available, but universal tokenization is not clearly claimed
Omnichannel	Yes	Yes	Yes	Yes	Yes	Yes
White-label	Yes	Yes	Yes	Yes	Yes	Yes, branded white-label experience through Stax Connect
Level 1 support	Yes	Yes	Yes	Yes	Yes	Yes
Level 2 support for your merchants	Yes	No clear public mention	No clear public mention	No clear public mention	No clear public mention	Support options available, but Level 2 merchant support is not clearly stated

*All information presented in this blog has been sourced from provider websites and is accurate to the best of our knowledge at the time of writing (June 2026). However, providers may update their offerings, and details can change over time.

 Fiska: An embedded payments solution built for SaaS platforms

There’s no one-size-fits-all Finix alternative: it’ll depend on your needs. But since we’re writing this article, we’ll start by telling you a bit about how we can help.

Fiska is an embedded payments provider built exclusively for SaaS platforms. Our entire model is designed to help software companies grow revenue through payments, improve product stickiness, and launch payments without needing to hire an in-house team.

We understand the challenges that SaaS teams face when launching payments, from managing compliance to providing fast merchant support, and the complexities that come with maintaining a strong payments strategy. We act as your fractional Head of Payments, giving you hands-on guidance and payment infrastructure without the overhead.

Here’s what you get when you partner with Fiska:

Transparent pricing with aligned incentives

At Fiska, we operate on a true revenue share model. Once a merchant makes a sale through your platform, the revenue generated from processing that payment is shared between you and Fiska (after interchange has been deducted). Each month, your share is paid directly to your bank account, providing you with a guaranteed stream of income alongside your subscription revenue.

This model keeps us fully invested in your long-term success: we’re not here to extract fees, we’re here to grow with you. That’s why we don’t charge any fixed platform fees. Providers who do are paid regardless of whether you succeed, and we believe that creates a poor foundation for partnership. At Fiska, you’ll never be charged a fee that you haven’t approved, and all fees that we do charge are clearly broken down using interchange++ pricing.

“We don’t try to turn ISVs into a payments company. Payments is a feature within their platform. We educate them, give them the context and tools so they can make the best decision for their business.” Patrick Huynh, CEO of Fiska. 

Read more: Why Fiska doesn’t charge fees (and how our partnership model works)

Dedicated support team for you and your merchants

We assign a dedicated team to your account from day one. You’ll always be in contact with the same people, so you won’t have to re-explain what you do every time you reach out for support.

Once you’re onboarded, we’ll schedule regular check-ins so that we can stay up-to-date on your goals and strategy. It gives us a chance to share our expertise, and it makes it easy for us to proactively reach out if anything looks wrong. Think of us as an extension of your team; we’ll take care of payments so that you can focus on building your SaaS. Our partnership is non-exclusive and comes at no additional cost to you.

Our team is available to provide Level 1 support for your SaaS and Level 2 support for your merchants.

Imagine you’re a SaaS servicing coffee shops: it’s 8:00am on a Monday, and suddenly you receive a complaint from a merchant that your platform isn’t processing payments as usual. If the issue isn’t fixed quickly, the café could lose out on their rush-hour sales, or worse, an entire trading day. In situations like this, Fiska is available to step in and talk directly to your merchants until their payment issue is resolved. We’ll respond within 24 hours, and our team can be easily contacted via Slack, email, or phone.

Universal tokenization for multi-channel payments

We’re an omnichannel embedded payments solution, which means your merchants can easily accept both card-present and card-not-present transactions. Our middleware lets point-of-sale (POS) software integrate with multiple payment processors and terminals: no infrastructure changes or terminal swaps required. SaaS partners don’t need to go through a complex 6–12 month certification process. Instead, we send our partners pre-certified devices ready to use right from the start.

To enhance omnichannel data consistency, we offer universal tokenization. Your merchant’s end users will only need to enter their card details once, because we swap their details for a secure ‘token’ that is unique to each card/customer. This token works across all your merchants and across all channels, whether that’s online, in-person, mobile, or even for recurring billing.

For example, customers could make an online payment, then decide to return the item in-store and receive a refund directly to their card. Or, they could subscribe via app and enter their payment details through your merchant’s website. This smooth omnichannel experience is made possible because payment data is tokenized.

Read more: Universal tokenization: How it works and how it can benefit SaaS platforms

Rainforest

Rainforest is a SaaS-specific embedded payments provider that primarily serves vertical SaaS. Though they don’t share revenue with their SaaS clients, they do allow clients to generate revenue by marking up the base rate. They use a fixed markup, and they bill using transparent interchange-plus pricing. Their usage-based fees are not publicly listed, which could make budgeting difficult for SMEs.

Like Fiska, Rainforest supports omnichannel payments and also provides a fully white-labeled customer experience; however, their website doesn’t specify whether they offer level 2 support (support for merchants) or universal tokenization.

Fiska has decades of expertise supporting the complex needs of vertical SaaS, ur platform was built specifically to serve SaaS platforms, and Read more about vertical SaaS payment solutions

Tilled

Tilled is a startup PayFac-as-a-Service that serves software platforms that want to monetize payments without having to register as a payment facilitator. Their pricing options include either interchange-plus, or fixed-rate with a revenue share at either 70% (with a monthly fee of $2,500) or 90% (with a $10,000 monthly fee).¹

Their API is quick to set up because it requires minimal coding, which is useful for teams with limited resources. Their API includes: omnichannel payment capabilities, embedded merchant onboarding, revenue share. It’s unclear from their website whether universal tokenization or Level 2 merchant support is included.

The standard contract length for using Tilled’s embedded payments is three years, though they won’t charge any lock-in penalties should you decide to break the contract early. All merchants with a high dispute rate are charged a High Volume Dispute fee by Tilled, regardless of the outcome of individual disputes. The exact amount of this fee is not listed publicly.

Unsure whether PayFac-as-a-Service is right for you? Read more: PayFac-as-a-Service VS PayFac-in-a-Box

Sola Payments (formerly Cardknox)

Sola Payments is a payment gateway and processing platform that serves ISVs, VARs, and software platforms. They have two main offerings:

1. With their traditional ISO model, SaaS companies can partner with them as Independent Sales Organizations (ISO) and refer merchants to Cardknox to earn residual revenue. SaaS that choose this option can share in payment processing revenue that’s generated by merchants, plus businesses can add their own markup on top of Cardknox’s processing rate.
2. Alternatively, SaaS platforms can become payment facilitators (PayFacs) using the Cardknox Go PayFac-as-a-Service offering. It provides a software suite, compliance, omnichannel coverage, and risk management.

Cardknox is a fully white-labeled solution that lets users customize their onboarding, pricing, reporting, and UI. Their website makes no mention of offering level 2 support for merchants, and while they do offer tokenization, they do not specify whether this is universal or not.

Read more: PayFac VS ISO: What’s right for your SaaS platform?

Stax

Stax serves as both a PayFac-as-a-Service and an embedded payments platform through its Stax Connect offering. They charge a fixed monthly fee based on annual processing volume—starting at $99/month for up to $150,000 in annual volume, $139/month for $150,000-$250,000, and $199+/month for higher volumes.² Custom quotes are available for large enterprise clients.

Stax’s platform is fully white-labeled, and it supports omnichannel tokenized payments. Credit card payouts usually only take 48 hours to clear, though ACH payouts from Stax could take between 3 and 5 days to become available. In addition to this, it’s unclear from their website whether they offer level 2 merchant support.

Stax does not add a percentage markup to interchange. Instead, you pay true interchange plus a small per-transaction fee ( $0.08 for card-present, and $0.15 for card-not-present). They have no cancellation fees.

Choose a payment partner that sets you up for success

When you add Fiska to your team, you get a dedicated payments partner whose success is directly tied to yours. We stay involved long past onboarding, and you receive your own support team that’s always available to provide guidance and strategic advice. We give you a high level of control over payments, and you can customize onboarding, reporting, and pricing to your liking.

We’re a payments partner that’s truly invested in your success. Get in touch with one of our experts today to see how we can help your SaaS earn more revenue with payments.

Sources:

1. www.finix.com
2. https://www.rainforestpay.com/
3. https://www.tilled.com/pricing
4. https://solapayments.com/
5. https://staxpayments.com/pricing/

FAQ: Finix competitors

1. What’s the best Finix competitor for SaaS platforms?

There is no single ‘best’ Finix competitor, but we believe that Fiska a strong alternative to Finix for SaaS companies that want full control over their embedded payments. Unlike other providers, Fiska is purpose-built for SaaS, with transparent pricing, dedicated merchant support, and flexible infrastructure that scales with your product.

2. Why choose Fiska over Finix for embedded payments?

While Finix is geared toward large enterprise teams, Fiska was designed to serve SaaS platforms of all sizes. Fiska provides true revenue share (no fixed platform fees), fully white-labeled payments, and proactive support for both your team and your merchants. If you want a partner who stays invested in your growth—not just a provider—you’ll find that Fiska offers more hands-on guidance and flexibility than Finix.

3. Does Fiska offer better support than Finix or other competitors?

We can’t comment how ‘good’ other competitor’s support is. But we can tell you that Fiska offers both Level 1 support for your SaaS and Level 2 support for your merchants. That means if a merchant’s payments stop working during peak hours, Fiska will step in to resolve it directly—no ticket queues, no delays. According to their websites, Finix and others don’t provide this level of merchant-facing support, leaving your team to handle the pressure alone.

4. Can Fiska be fully white-labeled?

Absolutely. Fiska was built to operate invisibly behind your brand, giving you complete control over onboarding, dashboards, reporting, and the merchant experience. Unlike some competitors that require co-branding or expose third-party elements, Fiska ensures your payments look and feel like a native part of your platform, because they are.