Checkout.com
Medium — proprietary tokens
Migration difficulty: medium
Data you keep: Via API export
API standard: Proprietary
Risk notes: Medium — proprietary tokens
💡 Moderate effort required. Export data before canceling
Payment Gateway / PSP
Checkout.com vs Unit
Checkout.com and Unit both show up under the payment gateway category, but they solve slightly different jobs. Checkout.com uses usage-based from custom pricing, while Unit runs on custom (sales-led) pricing. Lock-in is medium for Checkout.com and high for Unit. Transparency lands at 4/5 versus 1/5. Checkout.com fits teams working on SaaS with online payments, while Unit is a closer match when the job is FDIC-insured bank accounts and ACH for US fintech startups. Worth noting: Checkout.com is explicitly not for offline, Internal projects; Unit is explicitly not for Non-US teams or companies needing a plain payment gateway. The honest trade-off: Checkout.com trades off on offline-only retail; Unit trades off on sponsor bank risk post-US BaaS turbulence. On the plus side, Checkout.com highlights SaaS with online payments, while Unit points to accounts, cards, ACH, wire, lending unified. Checkout.com's documentation also calls out e-commerce checkout. Unit similarly notes FDIC-insured accounts via partner banks.
Quick take
Checkout.com is for SaaS with online payments; Unit is for FDIC-insured bank accounts and ACH for; decide on pricing model.
Feature comparison
| | | |
|---|---|---|
| Category | Payment Gateway / PSP | Payment Gateway / PSP |
| Pricing Model | usage | custom |
| Entry Price | custom pricing | — |
| Free Tier | No | No |
| Billing Complexity | medium | — |
| Developer Experience | 5/5 | 5/5 |
| Pricing Transparency | 4/5 | 1/5 |
| Lock-in Level | medium | high |
| Migration Complexity | medium | — |
| Data Portability | Via API export | — |
| Enterprise | Available | — |
| GitHub Stars | 1.3k | — |
| License | Apache-2.0 | — |
Switching cost & lock-in
Unit
When to choose which
Choose Checkout.com when…
Choose Checkout.com if your project is SaaS with online payments, usage-based billing at custom pricing matches your volume, medium lock-in is an acceptable trade-off.
- SaaS with online payments
- E-commerce checkout
- Excellent developer documentation and SDKs
Not for: Offline, Internal projects
Choose Unit when…
Choose Unit if your project is FDIC-insured bank accounts and ACH for US fintech startups, you are prepared for a sales-led custom-pricing conversation, you are willing to accept the high lock-in called out in our data.
- Accounts, cards, ACH, wire, lending unified
- FDIC-insured accounts via partner banks
- Modern API and developer experience
- Strong documentation and SDKs
Not for: Non-US teams or companies needing a plain payment gateway
Common use cases
Checkout.com
- SaaS with online payments
- E-commerce checkout
- Marketplace payment processing
Unit
- FDIC-insured bank accounts and ACH for US fintech startups
- Card issuing and lending APIs for embedded finance products
- Wire transfers and bank account opening via BaaS API
Ready to explore?
Check each tool's dedicated page for deeper reviews, setup notes, and pros/cons.
Frequently asked questions
Is Checkout.com cheaper than Unit?
Checkout.com uses usage-based from custom pricing, and Unit uses custom (sales-led) pricing. The pricing models are different, so a direct cheaper-than comparison depends on your volume and usage pattern.
Can I migrate from Checkout.com to Unit?
Our data puts Checkout.com at medium lock-in, and Unit at high lock-in (baas partner integrations hard to migrate). Migration is feasible but not trivial — budget time for re-integration, data export, and parallel running before cutover.
Which has better developer experience?
Both score 5/5 on developer experience in our data, so there's no clear winner on that axis. Checkout.com does edge ahead on pricing/docs transparency (4/5 vs 1/5), which can make evaluation faster.
Is Unit a good alternative to Checkout.com?
Unit is a reasonable alternative to Checkout.com when your workload leans more toward US fintech startups needing full-stack banking APIs with modern developer experience than SaaS, E-commerce, Marketplace. The pricing model shifts too — Checkout.com is usage-based from custom pricing, Unit is custom (sales-led) pricing — so expect the cost profile to change as well. One caveat: Unit is explicitly not for Non-US teams or companies needing a plain payment gateway, so check that constraint against your use-case before switching.
Community Discussion
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