Personal Finance · head to head
Afterpay vs Basis Theory
Afterpay
Personal Finance
Buy now pay later app splitting purchases into four instalments, owned by Block
- From
- Free
- Rated
- -
Basis Theory
APIs
Developer tokenisation platform that holds card and sensitive data inside a PCI Level 1 environment you do not operate
- From
- $995/month
- Rated
- -
The short version
- Only Afterpay has a free tier, so it costs nothing to try first.
- Each has a real cost: Afterpay a missed instalment triggers a late fee, and while total late fees on a purchase are capped, repeated missed payments across multiple purchases can add up to a meaningful cost that the interest-free marketing does not foreground.; Basis Theory the Starter plan is 995 US dollars a month before any volume, which is a real floor for an early stage company and puts the product out of reach of teams tokenising a few thousand records.
- They diverge on capability: Afterpay covers Four-instalment split, Basis Theory covers Tokenisation API.
- Prices and features above were last checked on 1 September 2026.
Where they differ
Only the attributes on which Afterpay and Basis Theory actually diverge.
| Attribute | Afterpay | Basis Theory |
|---|---|---|
| Starting price | Free | $995/month |
| Pricing model | Free to shoppers with no interest on the standard plan; merchant pays a per-transaction fee, late fees apply to missed payments | Per month by token volume |
| Free tier | Yes | No |
| Platforms | iOS, Android, Web | Web, iOS, Android, Linux |
| Category | Personal Finance | APIs |
Identical on both: user rating (Not yet rated).
What each one covers
Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.
Only in Afterpay
- Four-instalment split
- No interest on standard plan
- Late fee structure
- Merchant transaction fee
- Afterpay Card
- Spending limit management
Only in Basis Theory
- Tokenisation API
- Hosted elements
- Outbound proxy
- PCI attestation of compliance
- Processor portability
- Reactors
- Access controls and audit
- PII and PHI options
What people use each for
The jobs each tool is most often brought in to do.
Afterpay
- A shopper wanting to spread the cost of a purchase over six weeks without paying interest, provided every payment is made on timenot Basis Theory
- A merchant accepting Afterpay to capture shoppers who would otherwise abandon checkout, in exchange for a higher per-transaction fee than card processingnot Basis Theory
- A younger buyer without an established credit history using instalment purchases as an alternative to a credit cardnot Basis Theory
- Someone tracking their spending who wants to understand that a missed Afterpay payment can now affect a credit report, not just incur a feenot Basis Theory
Basis Theory
- A payments company that wants card on file without bringing its own infrastructure into PCI scope and paying for the assessment that followsnot Afterpay
- A merchant locked into a processor by that processor vault that wants to hold its own tokens and route to more than one acquirernot Afterpay
- A fintech collecting bank account and identity data that needs it isolated from its application database before an enterprise security reviewnot Afterpay
- A team that needs to send stored card data to a third party for a one-off integration without that data traversing its own serversnot Afterpay
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Afterpay
- A missed instalment triggers a late fee, and while total late fees on a purchase are capped, repeated missed payments across multiple purchases can add up to a meaningful cost that the interest-free marketing does not foreground.
- Afterpay has updated its reporting policies so that late payment history can be shared with credit bureaus in some markets including the US, meaning a product marketed as simple instalments can now affect a credit score.
- Merchants pay a transaction fee commonly in the 4 to 6 percent range plus a fixed fee, well above standard card processing, a cost that is typically absorbed into retail pricing rather than disclosed to the shopper choosing to use Afterpay.
- Spending limits and approval are based on repayment history within the app rather than a full credit check, which can make it easier to accumulate multiple concurrent instalment obligations across different purchases than a shopper realises.
- It is only usable at participating retailers or via the Afterpay Card, so coverage is narrower than a general-purpose credit or debit card despite behaving like one at checkout.
Basis Theory
- The Starter plan is 995 US dollars a month before any volume, which is a real floor for an early stage company and puts the product out of reach of teams tokenising a few thousand records.
- Starter is limited to the US region, so a company with European data residency requirements is pushed into a quoted Scale or Enterprise agreement immediately.
- Log retention on Starter is 24 hours, which is well below what most security teams expect for a system holding cardholder data and forces an upgrade for reasons unrelated to volume.
- Migrating away means moving card data out of the vault, which requires processor and assessor involvement and is slow, so the portability argument that attracts buyers cuts against them at exit.
- An attestation of compliance covers the vendor environment, not your assessment; your assessor still decides what is in scope, and buyers occasionally discover their integration pattern pulled systems back into scope anyway.
Pricing, plan by plan
Afterpay
Free- Pay in 4Free
- No interest charged if all four instalments are paid on time
- Late fee charged per missed payment, capped as a proportion of order value
- Missed payment history can be reported to credit bureaus in some markets
Basis Theory
$995/month- Starter$995/month
- 20,000 tokens included
- Production PCI Level 1 environment
- US region only
- Scale$undefined/month
- Quoted
- Higher token volumes
- Additional regions
- Enterprise$undefined/month
- Quoted
- Additional compliance options for PII and PHI
- Responses for 95 percent of PCI SAQ D
Which should you pick?
Choose Afterpay if
- You need four-instalment split.
- You want to start without paying.
- You work on iOS, Android, Web.
- You also want no interest on standard plan.
Choose Basis Theory if
- You need tokenisation api.
- You work on Web, iOS, Android, Linux.
- You also want hosted elements.
Questions people ask
- Is Afterpay or Basis Theory better?
- Neither clearly leads. Afterpay starts at Free and Basis Theory at $995/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Afterpay or Basis Theory?
- Afterpay has a free tier; the other does not. Paid plans start at Free for Afterpay and $995/month for Basis Theory.
- Does Afterpay or Basis Theory run on more platforms?
- Afterpay runs on iOS, Android, Web. Basis Theory runs on Web, iOS, Android, Linux.
- Can I use Afterpay for free?
- Yes. Afterpay has a free tier, so you can try it without paying. Basis Theory starts at $995/month.
- What is Afterpay best used for?
- Afterpay is most often used for a shopper wanting to spread the cost of a purchase over six weeks without paying interest, provided every payment is made on time, a merchant accepting afterpay to capture shoppers who would otherwise abandon checkout, in exchange for a higher per-transaction fee than card processing, a younger buyer without an established credit history using instalment purchases as an alternative to a credit card, someone tracking their spending who wants to understand that a missed afterpay payment can now affect a credit report, not just incur a fee. Of those, a shopper wanting to spread the cost of a purchase over six weeks without paying interest, provided every payment is made on time and a merchant accepting afterpay to capture shoppers who would otherwise abandon checkout, in exchange for a higher per-transaction fee than card processing are not what Basis Theory is typically brought in for.
- What can Afterpay do that Basis Theory cannot?
- Afterpay covers Four-instalment split, No interest on standard plan, Late fee structure, Merchant transaction fee. Basis Theory covers Tokenisation API, Hosted elements, Outbound proxy, PCI attestation of compliance.
Answered from the vendors’ own pages
Afterpay: Does Afterpay charge interest?
Not on the standard four-instalment Pay in 4 plan if every payment is made on time; longer instalment plans in some markets can carry interest, and missed payments incur late fees regardless.
Basis Theory: Does this make us PCI compliant?
It removes cardholder data from your systems and gives you an AOC plus documented responses for most of a SAQ D. Your assessor still determines your scope, and a careless integration can pull systems back in.
Afterpay: Can Afterpay affect my credit score?
Afterpay has updated its policies so that late payment history can be reported to credit bureaus in some markets including the US, which can affect a credit score even though the core product is marketed as interest-free.
Basis Theory: What does it cost to start?
995 US dollars a month on Starter, including 20,000 tokens, a production PCI Level 1 environment and US hosting. Higher tiers are quoted.
Afterpay: Who actually pays for Afterpay to be free for shoppers?
Merchants pay a per-transaction fee, commonly 4 to 6 percent plus a fixed fee, which is generally built into retail pricing rather than shown to the shopper.
Basis Theory: Can we switch payment processors without re-collecting cards?
Yes, that is the main non-compliance reason to buy it. You hold the tokens and detokenise into whichever processor you route to.
Basis Theory: Is data stored outside the United States?
Not on Starter, which is US only. Other regions require a Scale or Enterprise agreement.
Related pages
More on Basis Theory
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